Home / 76,632,001.60-114,948,002.40-72,852,865.60

Finding the Fourth Proportional to 76,632,001.60, 114,948,002.40 and 72,852,865.60

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Solution

The fourth proportional to 76,632,001.60, 114,948,002.40 and 72,852,865.60 is: 109,279,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,632,001.60 : 114,948,002.40 = 72,852,865.60 : x
  2. Step 2: Convert to fraction form
    76,632,001.60/114,948,002.40 = 72,852,865.60/x
  3. Step 3: Cross multiply
    76,632,001.60x = 114,948,002.40 × 72,852,865.60
  4. Step 4: Simplify right side
    76,632,001.60x = 8,374,291,369,835,677
  5. Step 5: Solve for x
    x = 8,374,291,369,835,677/76,632,001.60
  6. Step 6: Final answer
    x = 109,279,298.40

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1.5x scale

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.