Home / 280,932,943.97-387,688,292.13-155,493,852.35

Finding the Fourth Proportional to 280,932,943.97, 387,688,292.13 and 155,493,852.35

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Solution

The fourth proportional to 280,932,943.97, 387,688,292.13 and 155,493,852.35 is: 214,581,975.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,932,943.97 : 387,688,292.13 = 155,493,852.35 : x
  2. Step 2: Convert to fraction form
    280,932,943.97/387,688,292.13 = 155,493,852.35/x
  3. Step 3: Cross multiply
    280,932,943.97x = 387,688,292.13 × 155,493,852.35
  4. Step 4: Simplify right side
    280,932,943.97x = 60,283,146,052,347,448
  5. Step 5: Solve for x
    x = 60,283,146,052,347,448/280,932,943.97
  6. Step 6: Final answer
    x = 214,581,975.33

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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.