Home / 8,642,913,085.13-11,920,639,414.01-7,439,302,851.12

Finding the Fourth Proportional to 8,642,913,085.13, 11,920,639,414.01 and 7,439,302,851.12

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Solution

The fourth proportional to 8,642,913,085.13, 11,920,639,414.01 and 7,439,302,851.12 is: 10,260,573,710.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,913,085.13 : 11,920,639,414.01 = 7,439,302,851.12 : x
  2. Step 2: Convert to fraction form
    8,642,913,085.13/11,920,639,414.01 = 7,439,302,851.12/x
  3. Step 3: Cross multiply
    8,642,913,085.13x = 11,920,639,414.01 × 7,439,302,851.12
  4. Step 4: Simplify right side
    8,642,913,085.13x = 88,681,246,779,780,841,472
  5. Step 5: Solve for x
    x = 88,681,246,779,780,841,472/8,642,913,085.13
  6. Step 6: Final answer
    x = 10,260,573,710.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.