Home / 408,726,790.83-564,780,784.82-291,047,818.19

Finding the Fourth Proportional to 408,726,790.83, 564,780,784.82 and 291,047,818.19

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Solution

The fourth proportional to 408,726,790.83, 564,780,784.82 and 291,047,818.19 is: 402,171,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,726,790.83 : 564,780,784.82 = 291,047,818.19 : x
  2. Step 2: Convert to fraction form
    408,726,790.83/564,780,784.82 = 291,047,818.19/x
  3. Step 3: Cross multiply
    408,726,790.83x = 564,780,784.82 × 291,047,818.19
  4. Step 4: Simplify right side
    408,726,790.83x = 164,378,215,173,217,760
  5. Step 5: Solve for x
    x = 164,378,215,173,217,760/408,726,790.83
  6. Step 6: Final answer
    x = 402,171,374.28

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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.