Home / 425,736,000.40-638,604,000.60-119,027,621.20

Finding the Fourth Proportional to 425,736,000.40, 638,604,000.60 and 119,027,621.20

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Solution

The fourth proportional to 425,736,000.40, 638,604,000.60 and 119,027,621.20 is: 178,541,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,736,000.40 : 638,604,000.60 = 119,027,621.20 : x
  2. Step 2: Convert to fraction form
    425,736,000.40/638,604,000.60 = 119,027,621.20/x
  3. Step 3: Cross multiply
    425,736,000.40x = 638,604,000.60 × 119,027,621.20
  4. Step 4: Simplify right side
    425,736,000.40x = 76,011,515,080,221,376
  5. Step 5: Solve for x
    x = 76,011,515,080,221,376/425,736,000.40
  6. Step 6: Final answer
    x = 178,541,431.80

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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.