Home / 139,715,999.90-209,573,999.85-48,830,111.90

Finding the Fourth Proportional to 139,715,999.90, 209,573,999.85 and 48,830,111.90

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Solution

The fourth proportional to 139,715,999.90, 209,573,999.85 and 48,830,111.90 is: 73,245,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,715,999.90 : 209,573,999.85 = 48,830,111.90 : x
  2. Step 2: Convert to fraction form
    139,715,999.90/209,573,999.85 = 48,830,111.90/x
  3. Step 3: Cross multiply
    139,715,999.90x = 209,573,999.85 × 48,830,111.90
  4. Step 4: Simplify right side
    139,715,999.90x = 10,233,521,864,006,082
  5. Step 5: Solve for x
    x = 10,233,521,864,006,082/139,715,999.90
  6. Step 6: Final answer
    x = 73,245,167.85

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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.