Home / 123,660,000.90-185,490,001.35-42,889,133.70

Finding the Fourth Proportional to 123,660,000.90, 185,490,001.35 and 42,889,133.70

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Solution

The fourth proportional to 123,660,000.90, 185,490,001.35 and 42,889,133.70 is: 64,333,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,660,000.90 : 185,490,001.35 = 42,889,133.70 : x
  2. Step 2: Convert to fraction form
    123,660,000.90/185,490,001.35 = 42,889,133.70/x
  3. Step 3: Cross multiply
    123,660,000.90x = 185,490,001.35 × 42,889,133.70
  4. Step 4: Simplify right side
    123,660,000.90x = 7,955,505,467,913,331
  5. Step 5: Solve for x
    x = 7,955,505,467,913,331/123,660,000.90
  6. Step 6: Final answer
    x = 64,333,700.55

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Similar ratio
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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.