Home / 527,964,009.60-791,946,014.40-391,915,113.60

Finding the Fourth Proportional to 527,964,009.60, 791,946,014.40 and 391,915,113.60

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Solution

The fourth proportional to 527,964,009.60, 791,946,014.40 and 391,915,113.60 is: 587,872,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,964,009.60 : 791,946,014.40 = 391,915,113.60 : x
  2. Step 2: Convert to fraction form
    527,964,009.60/791,946,014.40 = 391,915,113.60/x
  3. Step 3: Cross multiply
    527,964,009.60x = 791,946,014.40 × 391,915,113.60
  4. Step 4: Simplify right side
    527,964,009.60x = 310,375,612,198,643,264
  5. Step 5: Solve for x
    x = 310,375,612,198,643,264/527,964,009.60
  6. Step 6: Final answer
    x = 587,872,670.40

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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.