Home / 11,478,358.48-15,840,851.10-6,321,718.72

Finding the Fourth Proportional to 11,478,358.48, 15,840,851.10 and 6,321,718.72

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Solution

The fourth proportional to 11,478,358.48, 15,840,851.10 and 6,321,718.72 is: 8,724,366.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478,358.48 : 15,840,851.10 = 6,321,718.72 : x
  2. Step 2: Convert to fraction form
    11,478,358.48/15,840,851.10 = 6,321,718.72/x
  3. Step 3: Cross multiply
    11,478,358.48x = 15,840,851.10 × 6,321,718.72
  4. Step 4: Simplify right side
    11,478,358.48x = 100,141,404,939,602.58
  5. Step 5: Solve for x
    x = 100,141,404,939,602.58/11,478,358.48
  6. Step 6: Final answer
    x = 8,724,366.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.