Home / 73,868,124.80-110,802,187.20-67,915,985.60

Finding the Fourth Proportional to 73,868,124.80, 110,802,187.20 and 67,915,985.60

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Solution

The fourth proportional to 73,868,124.80, 110,802,187.20 and 67,915,985.60 is: 101,873,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,868,124.80 : 110,802,187.20 = 67,915,985.60 : x
  2. Step 2: Convert to fraction form
    73,868,124.80/110,802,187.20 = 67,915,985.60/x
  3. Step 3: Cross multiply
    73,868,124.80x = 110,802,187.20 × 67,915,985.60
  4. Step 4: Simplify right side
    73,868,124.80x = 7,525,239,750,323,704
  5. Step 5: Solve for x
    x = 7,525,239,750,323,704/73,868,124.80
  6. Step 6: Final answer
    x = 101,873,978.40

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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.