Home / 127,638,252.26-191,312,146.20-77,672,872.48

Finding the Fourth Proportional to 127,638,252.26, 191,312,146.20 and 77,672,872.48

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Solution

The fourth proportional to 127,638,252.26, 191,312,146.20 and 77,672,872.48 is: 116,420,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,638,252.26 : 191,312,146.20 = 77,672,872.48 : x
  2. Step 2: Convert to fraction form
    127,638,252.26/191,312,146.20 = 77,672,872.48/x
  3. Step 3: Cross multiply
    127,638,252.26x = 191,312,146.20 × 77,672,872.48
  4. Step 4: Simplify right side
    127,638,252.26x = 14,859,763,934,711,154
  5. Step 5: Solve for x
    x = 14,859,763,934,711,154/127,638,252.26
  6. Step 6: Final answer
    x = 116,420,929.24

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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.