Home / 74,616,920,142.28-102,959,843,380.68-42,498,187,690.78

Finding the Fourth Proportional to 74,616,920,142.28, 102,959,843,380.68 and 42,498,187,690.78

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Solution

The fourth proportional to 74,616,920,142.28, 102,959,843,380.68 and 42,498,187,690.78 is: 58,640,945,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,616,920,142.28 : 102,959,843,380.68 = 42,498,187,690.78 : x
  2. Step 2: Convert to fraction form
    74,616,920,142.28/102,959,843,380.68 = 42,498,187,690.78/x
  3. Step 3: Cross multiply
    74,616,920,142.28x = 102,959,843,380.68 × 42,498,187,690.78
  4. Step 4: Simplify right side
    74,616,920,142.28x = 4,375,606,748,605,450,813,440
  5. Step 5: Solve for x
    x = 4,375,606,748,605,450,813,440/74,616,920,142.28
  6. Step 6: Final answer
    x = 58,640,945,515.60

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Double scale
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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.