Home / 68,687,381.77-103,035,000.20-19,499,387.68

Finding the Fourth Proportional to 68,687,381.77, 103,035,000.20 and 19,499,387.68

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Solution

The fourth proportional to 68,687,381.77, 103,035,000.20 and 19,499,387.68 is: 29,250,196.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,687,381.77 : 103,035,000.20 = 19,499,387.68 : x
  2. Step 2: Convert to fraction form
    68,687,381.77/103,035,000.20 = 19,499,387.68/x
  3. Step 3: Cross multiply
    68,687,381.77x = 103,035,000.20 × 19,499,387.68
  4. Step 4: Simplify right side
    68,687,381.77x = 2,009,119,413,070,184
  5. Step 5: Solve for x
    x = 2,009,119,413,070,184/68,687,381.77
  6. Step 6: Final answer
    x = 29,250,196.49

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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.