Home / 102,990,097-142,127,840.10-55,948,044.52

Finding the Fourth Proportional to 102,990,097, 142,127,840.10 and 55,948,044.52

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Solution

The fourth proportional to 102,990,097, 142,127,840.10 and 55,948,044.52 is: 77,209,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,990,097 : 142,127,840.10 = 55,948,044.52 : x
  2. Step 2: Convert to fraction form
    102,990,097/142,127,840.10 = 55,948,044.52/x
  3. Step 3: Cross multiply
    102,990,097x = 142,127,840.10 × 55,948,044.52
  4. Step 4: Simplify right side
    102,990,097x = 7,951,774,725,446,241
  5. Step 5: Solve for x
    x = 7,951,774,725,446,241/102,990,097
  6. Step 6: Final answer
    x = 77,209,119.68

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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.