Home / 88,535,999.20-132,803,998.80-72,380,192.80

Finding the Fourth Proportional to 88,535,999.20, 132,803,998.80 and 72,380,192.80

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Solution

The fourth proportional to 88,535,999.20, 132,803,998.80 and 72,380,192.80 is: 108,570,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,535,999.20 : 132,803,998.80 = 72,380,192.80 : x
  2. Step 2: Convert to fraction form
    88,535,999.20/132,803,998.80 = 72,380,192.80/x
  3. Step 3: Cross multiply
    88,535,999.20x = 132,803,998.80 × 72,380,192.80
  4. Step 4: Simplify right side
    88,535,999.20x = 9,612,379,037,754,968
  5. Step 5: Solve for x
    x = 9,612,379,037,754,968/88,535,999.20
  6. Step 6: Final answer
    x = 108,570,289.20

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1.5x scale

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.