Home / 1,209,443,081.40-1,812,478,104.90-914,095,729.80

Finding the Fourth Proportional to 1,209,443,081.40, 1,812,478,104.90 and 914,095,729.80

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Solution

The fourth proportional to 1,209,443,081.40, 1,812,478,104.90 and 914,095,729.80 is: 1,369,868,926.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,443,081.40 : 1,812,478,104.90 = 914,095,729.80 : x
  2. Step 2: Convert to fraction form
    1,209,443,081.40/1,812,478,104.90 = 914,095,729.80/x
  3. Step 3: Cross multiply
    1,209,443,081.40x = 1,812,478,104.90 × 914,095,729.80
  4. Step 4: Simplify right side
    1,209,443,081.40x = 1,656,778,496,045,086,464
  5. Step 5: Solve for x
    x = 1,656,778,496,045,086,464/1,209,443,081.40
  6. Step 6: Final answer
    x = 1,369,868,926.88

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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.