Home / 315,577,007.20-473,365,510.80-85,545,722.80

Finding the Fourth Proportional to 315,577,007.20, 473,365,510.80 and 85,545,722.80

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Solution

The fourth proportional to 315,577,007.20, 473,365,510.80 and 85,545,722.80 is: 128,318,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,577,007.20 : 473,365,510.80 = 85,545,722.80 : x
  2. Step 2: Convert to fraction form
    315,577,007.20/473,365,510.80 = 85,545,722.80/x
  3. Step 3: Cross multiply
    315,577,007.20x = 473,365,510.80 × 85,545,722.80
  4. Step 4: Simplify right side
    315,577,007.20x = 40,494,394,769,977,208
  5. Step 5: Solve for x
    x = 40,494,394,769,977,208/315,577,007.20
  6. Step 6: Final answer
    x = 128,318,584.20

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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.