Home / 517,928,285.76-714,732,693.12-282,973,901.28

Finding the Fourth Proportional to 517,928,285.76, 714,732,693.12 and 282,973,901.28

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Solution

The fourth proportional to 517,928,285.76, 714,732,693.12 and 282,973,901.28 is: 390,499,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,928,285.76 : 714,732,693.12 = 282,973,901.28 : x
  2. Step 2: Convert to fraction form
    517,928,285.76/714,732,693.12 = 282,973,901.28/x
  3. Step 3: Cross multiply
    517,928,285.76x = 714,732,693.12 × 282,973,901.28
  4. Step 4: Simplify right side
    517,928,285.76x = 202,250,698,544,527,392
  5. Step 5: Solve for x
    x = 202,250,698,544,527,392/517,928,285.76
  6. Step 6: Final answer
    x = 390,499,426.48

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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.