Home / 81,823,143.60-122,904,776.52-64,902,062.16

Finding the Fourth Proportional to 81,823,143.60, 122,904,776.52 and 64,902,062.16

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Solution

The fourth proportional to 81,823,143.60, 122,904,776.52 and 64,902,062.16 is: 97,487,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,823,143.60 : 122,904,776.52 = 64,902,062.16 : x
  2. Step 2: Convert to fraction form
    81,823,143.60/122,904,776.52 = 64,902,062.16/x
  3. Step 3: Cross multiply
    81,823,143.60x = 122,904,776.52 × 64,902,062.16
  4. Step 4: Simplify right side
    81,823,143.60x = 7,976,773,445,461,948
  5. Step 5: Solve for x
    x = 7,976,773,445,461,948/81,823,143.60
  6. Step 6: Final answer
    x = 97,487,985.61

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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.