Home / 71,543,300.40-98,730,127.80-38,948,485.68

Finding the Fourth Proportional to 71,543,300.40, 98,730,127.80 and 38,948,485.68

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Solution

The fourth proportional to 71,543,300.40, 98,730,127.80 and 38,948,485.68 is: 53,749,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,543,300.40 : 98,730,127.80 = 38,948,485.68 : x
  2. Step 2: Convert to fraction form
    71,543,300.40/98,730,127.80 = 38,948,485.68/x
  3. Step 3: Cross multiply
    71,543,300.40x = 98,730,127.80 × 38,948,485.68
  4. Step 4: Simplify right side
    71,543,300.40x = 3,845,388,968,802,870
  5. Step 5: Solve for x
    x = 3,845,388,968,802,870/71,543,300.40
  6. Step 6: Final answer
    x = 53,749,113.44

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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.