Home / 12,078,233,715.40-18,117,350,573.10-8,208,398,451.40

Finding the Fourth Proportional to 12,078,233,715.40, 18,117,350,573.10 and 8,208,398,451.40

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Solution

The fourth proportional to 12,078,233,715.40, 18,117,350,573.10 and 8,208,398,451.40 is: 12,312,597,677.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,233,715.40 : 18,117,350,573.10 = 8,208,398,451.40 : x
  2. Step 2: Convert to fraction form
    12,078,233,715.40/18,117,350,573.10 = 8,208,398,451.40/x
  3. Step 3: Cross multiply
    12,078,233,715.40x = 18,117,350,573.10 × 8,208,398,451.40
  4. Step 4: Simplify right side
    12,078,233,715.40x = 148,714,432,387,704,913,920
  5. Step 5: Solve for x
    x = 148,714,432,387,704,913,920/12,078,233,715.40
  6. Step 6: Final answer
    x = 12,312,597,677.10

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Double scale
Find fourth proportional to 12,078,233,716.40, 18,117,350,574.60 and 8,208,398,452.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.