Home / 12,456,053.70-18,684,080.55-7,648,152.90

Finding the Fourth Proportional to 12,456,053.70, 18,684,080.55 and 7,648,152.90

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Solution

The fourth proportional to 12,456,053.70, 18,684,080.55 and 7,648,152.90 is: 11,472,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,053.70 : 18,684,080.55 = 7,648,152.90 : x
  2. Step 2: Convert to fraction form
    12,456,053.70/18,684,080.55 = 7,648,152.90/x
  3. Step 3: Cross multiply
    12,456,053.70x = 18,684,080.55 × 7,648,152.90
  4. Step 4: Simplify right side
    12,456,053.70x = 142,898,704,842,316.09
  5. Step 5: Solve for x
    x = 142,898,704,842,316.09/12,456,053.70
  6. Step 6: Final answer
    x = 11,472,229.35

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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.