Home / 138,024,005.70-207,036,008.55-40,994,688.90

Finding the Fourth Proportional to 138,024,005.70, 207,036,008.55 and 40,994,688.90

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Solution

The fourth proportional to 138,024,005.70, 207,036,008.55 and 40,994,688.90 is: 61,492,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,024,005.70 : 207,036,008.55 = 40,994,688.90 : x
  2. Step 2: Convert to fraction form
    138,024,005.70/207,036,008.55 = 40,994,688.90/x
  3. Step 3: Cross multiply
    138,024,005.70x = 207,036,008.55 × 40,994,688.90
  4. Step 4: Simplify right side
    138,024,005.70x = 8,487,376,761,604,990
  5. Step 5: Solve for x
    x = 8,487,376,761,604,990/138,024,005.70
  6. Step 6: Final answer
    x = 61,492,033.35

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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.