Home / 139,872,005.70-209,808,008.55-137,184,620.10

Finding the Fourth Proportional to 139,872,005.70, 209,808,008.55 and 137,184,620.10

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Solution

The fourth proportional to 139,872,005.70, 209,808,008.55 and 137,184,620.10 is: 205,776,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,872,005.70 : 209,808,008.55 = 137,184,620.10 : x
  2. Step 2: Convert to fraction form
    139,872,005.70/209,808,008.55 = 137,184,620.10/x
  3. Step 3: Cross multiply
    139,872,005.70x = 209,808,008.55 × 137,184,620.10
  4. Step 4: Simplify right side
    139,872,005.70x = 28,782,431,946,869,304
  5. Step 5: Solve for x
    x = 28,782,431,946,869,304/139,872,005.70
  6. Step 6: Final answer
    x = 205,776,930.15

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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.