Home / 137,732,892.10-190,064,105.85-78,992,521.54

Finding the Fourth Proportional to 137,732,892.10, 190,064,105.85 and 78,992,521.54

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Solution

The fourth proportional to 137,732,892.10, 190,064,105.85 and 78,992,521.54 is: 109,005,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,732,892.10 : 190,064,105.85 = 78,992,521.54 : x
  2. Step 2: Convert to fraction form
    137,732,892.10/190,064,105.85 = 78,992,521.54/x
  3. Step 3: Cross multiply
    137,732,892.10x = 190,064,105.85 × 78,992,521.54
  4. Step 4: Simplify right side
    137,732,892.10x = 15,013,642,975,336,966
  5. Step 5: Solve for x
    x = 15,013,642,975,336,966/137,732,892.10
  6. Step 6: Final answer
    x = 109,005,501.49

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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.