Home / 71,459,389.70-98,611,111.77-38,864,367.62

Finding the Fourth Proportional to 71,459,389.70, 98,611,111.77 and 38,864,367.62

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Solution

The fourth proportional to 71,459,389.70, 98,611,111.77 and 38,864,367.62 is: 53,631,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,459,389.70 : 98,611,111.77 = 38,864,367.62 : x
  2. Step 2: Convert to fraction form
    71,459,389.70/98,611,111.77 = 38,864,367.62/x
  3. Step 3: Cross multiply
    71,459,389.70x = 98,611,111.77 × 38,864,367.62
  4. Step 4: Simplify right side
    71,459,389.70x = 3,832,458,499,246,188.50
  5. Step 5: Solve for x
    x = 3,832,458,499,246,188.50/71,459,389.70
  6. Step 6: Final answer
    x = 53,631,279.46

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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.