Home / 72,623,986.80-109,061,951.40-38,611,762.80

Finding the Fourth Proportional to 72,623,986.80, 109,061,951.40 and 38,611,762.80

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Solution

The fourth proportional to 72,623,986.80, 109,061,951.40 and 38,611,762.80 is: 57,984,618.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,623,986.80 : 109,061,951.40 = 38,611,762.80 : x
  2. Step 2: Convert to fraction form
    72,623,986.80/109,061,951.40 = 38,611,762.80/x
  3. Step 3: Cross multiply
    72,623,986.80x = 109,061,951.40 × 38,611,762.80
  4. Step 4: Simplify right side
    72,623,986.80x = 4,211,074,197,961,928
  5. Step 5: Solve for x
    x = 4,211,074,197,961,928/72,623,986.80
  6. Step 6: Final answer
    x = 57,984,618.91

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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.