Home / 479,011,562.28-660,911,004.18-280,666,496.16

Finding the Fourth Proportional to 479,011,562.28, 660,911,004.18 and 280,666,496.16

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Solution

The fourth proportional to 479,011,562.28, 660,911,004.18 and 280,666,496.16 is: 387,246,551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,011,562.28 : 660,911,004.18 = 280,666,496.16 : x
  2. Step 2: Convert to fraction form
    479,011,562.28/660,911,004.18 = 280,666,496.16/x
  3. Step 3: Cross multiply
    479,011,562.28x = 660,911,004.18 × 280,666,496.16
  4. Step 4: Simplify right side
    479,011,562.28x = 185,495,575,816,787,712
  5. Step 5: Solve for x
    x = 185,495,575,816,787,712/479,011,562.28
  6. Step 6: Final answer
    x = 387,246,551.91

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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.