Home / 139,968,006.30-209,952,009.45-71,817,587.10

Finding the Fourth Proportional to 139,968,006.30, 209,952,009.45 and 71,817,587.10

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Solution

The fourth proportional to 139,968,006.30, 209,952,009.45 and 71,817,587.10 is: 107,726,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,006.30 : 209,952,009.45 = 71,817,587.10 : x
  2. Step 2: Convert to fraction form
    139,968,006.30/209,952,009.45 = 71,817,587.10/x
  3. Step 3: Cross multiply
    139,968,006.30x = 209,952,009.45 × 71,817,587.10
  4. Step 4: Simplify right side
    139,968,006.30x = 15,078,246,725,495,396
  5. Step 5: Solve for x
    x = 15,078,246,725,495,396/139,968,006.30
  6. Step 6: Final answer
    x = 107,726,380.65

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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.