Home / 387,779,034.46-581,625,439.50-138,774,242.96

Finding the Fourth Proportional to 387,779,034.46, 581,625,439.50 and 138,774,242.96

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Solution

The fourth proportional to 387,779,034.46, 581,625,439.50 and 138,774,242.96 is: 208,145,935.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,779,034.46 : 581,625,439.50 = 138,774,242.96 : x
  2. Step 2: Convert to fraction form
    387,779,034.46/581,625,439.50 = 138,774,242.96/x
  3. Step 3: Cross multiply
    387,779,034.46x = 581,625,439.50 × 138,774,242.96
  4. Step 4: Simplify right side
    387,779,034.46x = 80,714,630,052,889,792
  5. Step 5: Solve for x
    x = 80,714,630,052,889,792/387,779,034.46
  6. Step 6: Final answer
    x = 208,145,935.91

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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.