Home / 79,488,000.20-119,232,000.30-78,984,115.40

Finding the Fourth Proportional to 79,488,000.20, 119,232,000.30 and 78,984,115.40

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Solution

The fourth proportional to 79,488,000.20, 119,232,000.30 and 78,984,115.40 is: 118,476,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,488,000.20 : 119,232,000.30 = 78,984,115.40 : x
  2. Step 2: Convert to fraction form
    79,488,000.20/119,232,000.30 = 78,984,115.40/x
  3. Step 3: Cross multiply
    79,488,000.20x = 119,232,000.30 × 78,984,115.40
  4. Step 4: Simplify right side
    79,488,000.20x = 9,417,434,071,068,036
  5. Step 5: Solve for x
    x = 9,417,434,071,068,036/79,488,000.20
  6. Step 6: Final answer
    x = 118,476,173.10

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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.