Home / 12,586,464,386.40-18,879,696,579.60-6,709,152,079.20

Finding the Fourth Proportional to 12,586,464,386.40, 18,879,696,579.60 and 6,709,152,079.20

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Solution

The fourth proportional to 12,586,464,386.40, 18,879,696,579.60 and 6,709,152,079.20 is: 10,063,728,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586,464,386.40 : 18,879,696,579.60 = 6,709,152,079.20 : x
  2. Step 2: Convert to fraction form
    12,586,464,386.40/18,879,696,579.60 = 6,709,152,079.20/x
  3. Step 3: Cross multiply
    12,586,464,386.40x = 18,879,696,579.60 × 6,709,152,079.20
  4. Step 4: Simplify right side
    12,586,464,386.40x = 126,666,755,561,688,449,024
  5. Step 5: Solve for x
    x = 126,666,755,561,688,449,024/12,586,464,386.40
  6. Step 6: Final answer
    x = 10,063,728,118.80

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Double scale
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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.