Home / 215,604,459.20-323,406,688.80-79,261,630.40

Finding the Fourth Proportional to 215,604,459.20, 323,406,688.80 and 79,261,630.40

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Solution

The fourth proportional to 215,604,459.20, 323,406,688.80 and 79,261,630.40 is: 118,892,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,604,459.20 : 323,406,688.80 = 79,261,630.40 : x
  2. Step 2: Convert to fraction form
    215,604,459.20/323,406,688.80 = 79,261,630.40/x
  3. Step 3: Cross multiply
    215,604,459.20x = 323,406,688.80 × 79,261,630.40
  4. Step 4: Simplify right side
    215,604,459.20x = 25,633,741,436,553,424
  5. Step 5: Solve for x
    x = 25,633,741,436,553,424/215,604,459.20
  6. Step 6: Final answer
    x = 118,892,445.60

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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.