Home / 68,239,877.40-102,359,816.10-19,719,314.10

Finding the Fourth Proportional to 68,239,877.40, 102,359,816.10 and 19,719,314.10

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Solution

The fourth proportional to 68,239,877.40, 102,359,816.10 and 19,719,314.10 is: 29,578,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,239,877.40 : 102,359,816.10 = 19,719,314.10 : x
  2. Step 2: Convert to fraction form
    68,239,877.40/102,359,816.10 = 19,719,314.10/x
  3. Step 3: Cross multiply
    68,239,877.40x = 102,359,816.10 × 19,719,314.10
  4. Step 4: Simplify right side
    68,239,877.40x = 2,018,465,364,894,137
  5. Step 5: Solve for x
    x = 2,018,465,364,894,137/68,239,877.40
  6. Step 6: Final answer
    x = 29,578,971.15

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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.