Home / 7,128,002.20-10,692,003.30-5,931,275.80

Finding the Fourth Proportional to 7,128,002.20, 10,692,003.30 and 5,931,275.80

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Solution

The fourth proportional to 7,128,002.20, 10,692,003.30 and 5,931,275.80 is: 8,896,913.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,002.20 : 10,692,003.30 = 5,931,275.80 : x
  2. Step 2: Convert to fraction form
    7,128,002.20/10,692,003.30 = 5,931,275.80/x
  3. Step 3: Cross multiply
    7,128,002.20x = 10,692,003.30 × 5,931,275.80
  4. Step 4: Simplify right side
    7,128,002.20x = 63,417,220,426,810.14
  5. Step 5: Solve for x
    x = 63,417,220,426,810.14/7,128,002.20
  6. Step 6: Final answer
    x = 8,896,913.70

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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.