Home / 7,128,004.20-10,692,006.30-6,876,061.80

Finding the Fourth Proportional to 7,128,004.20, 10,692,006.30 and 6,876,061.80

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Solution

The fourth proportional to 7,128,004.20, 10,692,006.30 and 6,876,061.80 is: 10,314,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,004.20 : 10,692,006.30 = 6,876,061.80 : x
  2. Step 2: Convert to fraction form
    7,128,004.20/10,692,006.30 = 6,876,061.80/x
  3. Step 3: Cross multiply
    7,128,004.20x = 10,692,006.30 × 6,876,061.80
  4. Step 4: Simplify right side
    7,128,004.20x = 73,518,896,084,789.34
  5. Step 5: Solve for x
    x = 73,518,896,084,789.34/7,128,004.20
  6. Step 6: Final answer
    x = 10,314,092.70

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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.