Home / 288,129,207.31-432,192,365.49-69,779,543.52

Finding the Fourth Proportional to 288,129,207.31, 432,192,365.49 and 69,779,543.52

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Solution

The fourth proportional to 288,129,207.31, 432,192,365.49 and 69,779,543.52 is: 104,668,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,129,207.31 : 432,192,365.49 = 69,779,543.52 : x
  2. Step 2: Convert to fraction form
    288,129,207.31/432,192,365.49 = 69,779,543.52/x
  3. Step 3: Cross multiply
    288,129,207.31x = 432,192,365.49 × 69,779,543.52
  4. Step 4: Simplify right side
    288,129,207.31x = 30,158,185,977,189,928
  5. Step 5: Solve for x
    x = 30,158,185,977,189,928/288,129,207.31
  6. Step 6: Final answer
    x = 104,668,965.22

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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.