Home / 172,368,663.10-258,552,994.65-138,356,439.10

Finding the Fourth Proportional to 172,368,663.10, 258,552,994.65 and 138,356,439.10

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Solution

The fourth proportional to 172,368,663.10, 258,552,994.65 and 138,356,439.10 is: 207,534,658.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,368,663.10 : 258,552,994.65 = 138,356,439.10 : x
  2. Step 2: Convert to fraction form
    172,368,663.10/258,552,994.65 = 138,356,439.10/x
  3. Step 3: Cross multiply
    172,368,663.10x = 258,552,994.65 × 138,356,439.10
  4. Step 4: Simplify right side
    172,368,663.10x = 35,772,471,658,415,352
  5. Step 5: Solve for x
    x = 35,772,471,658,415,352/172,368,663.10
  6. Step 6: Final answer
    x = 207,534,658.65

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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.