Home / 256,021,314.95-383,988,694.12-71,746,411.61

Finding the Fourth Proportional to 256,021,314.95, 383,988,694.12 and 71,746,411.61

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Solution

The fourth proportional to 256,021,314.95, 383,988,694.12 and 71,746,411.61 is: 107,607,489.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,021,314.95 : 383,988,694.12 = 71,746,411.61 : x
  2. Step 2: Convert to fraction form
    256,021,314.95/383,988,694.12 = 71,746,411.61/x
  3. Step 3: Cross multiply
    256,021,314.95x = 383,988,694.12 × 71,746,411.61
  4. Step 4: Simplify right side
    256,021,314.95x = 27,549,810,901,919,908
  5. Step 5: Solve for x
    x = 27,549,810,901,919,908/256,021,314.95
  6. Step 6: Final answer
    x = 107,607,489.27

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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.