Home / 485,047,140.90-727,676,999.55-239,521,398.90

Finding the Fourth Proportional to 485,047,140.90, 727,676,999.55 and 239,521,398.90

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Solution

The fourth proportional to 485,047,140.90, 727,676,999.55 and 239,521,398.90 is: 359,334,584.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,047,140.90 : 727,676,999.55 = 239,521,398.90 : x
  2. Step 2: Convert to fraction form
    485,047,140.90/727,676,999.55 = 239,521,398.90/x
  3. Step 3: Cross multiply
    485,047,140.90x = 727,676,999.55 × 239,521,398.90
  4. Step 4: Simplify right side
    485,047,140.90x = 174,294,212,879,570,656
  5. Step 5: Solve for x
    x = 174,294,212,879,570,656/485,047,140.90
  6. Step 6: Final answer
    x = 359,334,584.59

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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.