Home / 115,391,432.70-172,940,182.65-47,157,032.70

Finding the Fourth Proportional to 115,391,432.70, 172,940,182.65 and 47,157,032.70

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Solution

The fourth proportional to 115,391,432.70, 172,940,182.65 and 47,157,032.70 is: 70,675,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,391,432.70 : 172,940,182.65 = 47,157,032.70 : x
  2. Step 2: Convert to fraction form
    115,391,432.70/172,940,182.65 = 47,157,032.70/x
  3. Step 3: Cross multiply
    115,391,432.70x = 172,940,182.65 × 47,157,032.70
  4. Step 4: Simplify right side
    115,391,432.70x = 8,155,345,848,370,023
  5. Step 5: Solve for x
    x = 8,155,345,848,370,023/115,391,432.70
  6. Step 6: Final answer
    x = 70,675,488.27

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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.