Home / 100,953,006.80-151,429,510.20-72,287,560.40

Finding the Fourth Proportional to 100,953,006.80, 151,429,510.20 and 72,287,560.40

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Solution

The fourth proportional to 100,953,006.80, 151,429,510.20 and 72,287,560.40 is: 108,431,340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,953,006.80 : 151,429,510.20 = 72,287,560.40 : x
  2. Step 2: Convert to fraction form
    100,953,006.80/151,429,510.20 = 72,287,560.40/x
  3. Step 3: Cross multiply
    100,953,006.80x = 151,429,510.20 × 72,287,560.40
  4. Step 4: Simplify right side
    100,953,006.80x = 10,946,469,864,924,916
  5. Step 5: Solve for x
    x = 10,946,469,864,924,916/100,953,006.80
  6. Step 6: Final answer
    x = 108,431,340.60

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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.