Home / 386,156,601.90-579,458,851.65-143,844,000.30

Finding the Fourth Proportional to 386,156,601.90, 579,458,851.65 and 143,844,000.30

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Solution

The fourth proportional to 386,156,601.90, 579,458,851.65 and 143,844,000.30 is: 215,849,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,156,601.90 : 579,458,851.65 = 143,844,000.30 : x
  2. Step 2: Convert to fraction form
    386,156,601.90/579,458,851.65 = 143,844,000.30/x
  3. Step 3: Cross multiply
    386,156,601.90x = 579,458,851.65 × 143,844,000.30
  4. Step 4: Simplify right side
    386,156,601.90x = 83,351,679,230,580,256
  5. Step 5: Solve for x
    x = 83,351,679,230,580,256/386,156,601.90
  6. Step 6: Final answer
    x = 215,849,421.76

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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.