Home / 260,367,971.60-390,551,957.40-123,638,831.12

Finding the Fourth Proportional to 260,367,971.60, 390,551,957.40 and 123,638,831.12

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Solution

The fourth proportional to 260,367,971.60, 390,551,957.40 and 123,638,831.12 is: 185,458,246.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,367,971.60 : 390,551,957.40 = 123,638,831.12 : x
  2. Step 2: Convert to fraction form
    260,367,971.60/390,551,957.40 = 123,638,831.12/x
  3. Step 3: Cross multiply
    260,367,971.60x = 390,551,957.40 × 123,638,831.12
  4. Step 4: Simplify right side
    260,367,971.60x = 48,287,387,504,564,032
  5. Step 5: Solve for x
    x = 48,287,387,504,564,032/260,367,971.60
  6. Step 6: Final answer
    x = 185,458,246.68

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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.