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Finding the Fourth Proportional to 139,028,573.70, 208,542,860.55 and 106,842,932.10

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Solution

The fourth proportional to 139,028,573.70, 208,542,860.55 and 106,842,932.10 is: 160,264,398.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,028,573.70 : 208,542,860.55 = 106,842,932.10 : x
  2. Step 2: Convert to fraction form
    139,028,573.70/208,542,860.55 = 106,842,932.10/x
  3. Step 3: Cross multiply
    139,028,573.70x = 208,542,860.55 × 106,842,932.10
  4. Step 4: Simplify right side
    139,028,573.70x = 22,281,330,689,683,420
  5. Step 5: Solve for x
    x = 22,281,330,689,683,420/139,028,573.70
  6. Step 6: Final answer
    x = 160,264,398.15

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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.