Home / 215,602,234.60-323,403,351.90-86,145,831.40

Finding the Fourth Proportional to 215,602,234.60, 323,403,351.90 and 86,145,831.40

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Solution

The fourth proportional to 215,602,234.60, 323,403,351.90 and 86,145,831.40 is: 129,218,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,602,234.60 : 323,403,351.90 = 86,145,831.40 : x
  2. Step 2: Convert to fraction form
    215,602,234.60/323,403,351.90 = 86,145,831.40/x
  3. Step 3: Cross multiply
    215,602,234.60x = 323,403,351.90 × 86,145,831.40
  4. Step 4: Simplify right side
    215,602,234.60x = 27,859,850,626,972,268
  5. Step 5: Solve for x
    x = 27,859,850,626,972,268/215,602,234.60
  6. Step 6: Final answer
    x = 129,218,747.10

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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.