Home / 137,413,602-189,631,164.42-78,677,168.04

Finding the Fourth Proportional to 137,413,602, 189,631,164.42 and 78,677,168.04

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Solution

The fourth proportional to 137,413,602, 189,631,164.42 and 78,677,168.04 is: 108,574,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,413,602 : 189,631,164.42 = 78,677,168.04 : x
  2. Step 2: Convert to fraction form
    137,413,602/189,631,164.42 = 78,677,168.04/x
  3. Step 3: Cross multiply
    137,413,602x = 189,631,164.42 × 78,677,168.04
  4. Step 4: Simplify right side
    137,413,602x = 14,919,642,988,693,210
  5. Step 5: Solve for x
    x = 14,919,642,988,693,210/137,413,602
  6. Step 6: Final answer
    x = 108,574,717.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.