Home / 138,024,101.70-207,036,152.55-40,994,784.90

Finding the Fourth Proportional to 138,024,101.70, 207,036,152.55 and 40,994,784.90

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Solution

The fourth proportional to 138,024,101.70, 207,036,152.55 and 40,994,784.90 is: 61,492,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,024,101.70 : 207,036,152.55 = 40,994,784.90 : x
  2. Step 2: Convert to fraction form
    138,024,101.70/207,036,152.55 = 40,994,784.90/x
  3. Step 3: Cross multiply
    138,024,101.70x = 207,036,152.55 × 40,994,784.90
  4. Step 4: Simplify right side
    138,024,101.70x = 8,487,402,540,310,837
  5. Step 5: Solve for x
    x = 8,487,402,540,310,837/138,024,101.70
  6. Step 6: Final answer
    x = 61,492,177.35

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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.