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Finding the Fourth Proportional to 115,863,859, 159,893,819.94 and 62,941,549.96

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Solution

The fourth proportional to 115,863,859, 159,893,819.94 and 62,941,549.96 is: 86,860,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,863,859 : 159,893,819.94 = 62,941,549.96 : x
  2. Step 2: Convert to fraction form
    115,863,859/159,893,819.94 = 62,941,549.96/x
  3. Step 3: Cross multiply
    115,863,859x = 159,893,819.94 × 62,941,549.96
  4. Step 4: Simplify right side
    115,863,859x = 10,063,964,856,048,754
  5. Step 5: Solve for x
    x = 10,063,964,856,048,754/115,863,859
  6. Step 6: Final answer
    x = 86,860,259.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.