Home / 101,515,420.34-140,091,457.65-55,105,705.70

Finding the Fourth Proportional to 101,515,420.34, 140,091,457.65 and 55,105,705.70

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Solution

The fourth proportional to 101,515,420.34, 140,091,457.65 and 55,105,705.70 is: 76,045,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,515,420.34 : 140,091,457.65 = 55,105,705.70 : x
  2. Step 2: Convert to fraction form
    101,515,420.34/140,091,457.65 = 55,105,705.70/x
  3. Step 3: Cross multiply
    101,515,420.34x = 140,091,457.65 × 55,105,705.70
  4. Step 4: Simplify right side
    101,515,420.34x = 7,719,838,636,272,847
  5. Step 5: Solve for x
    x = 7,719,838,636,272,847/101,515,420.34
  6. Step 6: Final answer
    x = 76,045,970.26

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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.