Home / 288,584,779.96-398,236,327.10-156,422,938.92

Finding the Fourth Proportional to 288,584,779.96, 398,236,327.10 and 156,422,938.92

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Solution

The fourth proportional to 288,584,779.96, 398,236,327.10 and 156,422,938.92 is: 215,857,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,779.96 : 398,236,327.10 = 156,422,938.92 : x
  2. Step 2: Convert to fraction form
    288,584,779.96/398,236,327.10 = 156,422,938.92/x
  3. Step 3: Cross multiply
    288,584,779.96x = 398,236,327.10 × 156,422,938.92
  4. Step 4: Simplify right side
    288,584,779.96x = 62,293,296,669,688,440
  5. Step 5: Solve for x
    x = 62,293,296,669,688,440/288,584,779.96
  6. Step 6: Final answer
    x = 215,857,872.61

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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.