Home / 127,693,445.10-191,540,167.65-76,675,109.10

Finding the Fourth Proportional to 127,693,445.10, 191,540,167.65 and 76,675,109.10

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Solution

The fourth proportional to 127,693,445.10, 191,540,167.65 and 76,675,109.10 is: 115,012,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,693,445.10 : 191,540,167.65 = 76,675,109.10 : x
  2. Step 2: Convert to fraction form
    127,693,445.10/191,540,167.65 = 76,675,109.10/x
  3. Step 3: Cross multiply
    127,693,445.10x = 191,540,167.65 × 76,675,109.10
  4. Step 4: Simplify right side
    127,693,445.10x = 14,686,363,251,596,040
  5. Step 5: Solve for x
    x = 14,686,363,251,596,040/127,693,445.10
  6. Step 6: Final answer
    x = 115,012,663.65

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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.