Home / 139,968,171.30-209,952,256.95-132,031,985.70

Finding the Fourth Proportional to 139,968,171.30, 209,952,256.95 and 132,031,985.70

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Solution

The fourth proportional to 139,968,171.30, 209,952,256.95 and 132,031,985.70 is: 198,047,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,171.30 : 209,952,256.95 = 132,031,985.70 : x
  2. Step 2: Convert to fraction form
    139,968,171.30/209,952,256.95 = 132,031,985.70/x
  3. Step 3: Cross multiply
    139,968,171.30x = 209,952,256.95 × 132,031,985.70
  4. Step 4: Simplify right side
    139,968,171.30x = 27,720,413,387,305,124
  5. Step 5: Solve for x
    x = 27,720,413,387,305,124/139,968,171.30
  6. Step 6: Final answer
    x = 198,047,978.55

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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.