Home / 139,968,998.70-209,953,498.05-88,572,749.10

Finding the Fourth Proportional to 139,968,998.70, 209,953,498.05 and 88,572,749.10

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Solution

The fourth proportional to 139,968,998.70, 209,953,498.05 and 88,572,749.10 is: 132,859,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,998.70 : 209,953,498.05 = 88,572,749.10 : x
  2. Step 2: Convert to fraction form
    139,968,998.70/209,953,498.05 = 88,572,749.10/x
  3. Step 3: Cross multiply
    139,968,998.70x = 209,953,498.05 × 88,572,749.10
  4. Step 4: Simplify right side
    139,968,998.70x = 18,596,158,505,449,988
  5. Step 5: Solve for x
    x = 18,596,158,505,449,988/139,968,998.70
  6. Step 6: Final answer
    x = 132,859,123.65

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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.