Home / 10,646,386.80-15,969,580.20-6,391,359.60

Finding the Fourth Proportional to 10,646,386.80, 15,969,580.20 and 6,391,359.60

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Solution

The fourth proportional to 10,646,386.80, 15,969,580.20 and 6,391,359.60 is: 9,587,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,646,386.80 : 15,969,580.20 = 6,391,359.60 : x
  2. Step 2: Convert to fraction form
    10,646,386.80/15,969,580.20 = 6,391,359.60/x
  3. Step 3: Cross multiply
    10,646,386.80x = 15,969,580.20 × 6,391,359.60
  4. Step 4: Simplify right side
    10,646,386.80x = 102,067,329,719,239.91
  5. Step 5: Solve for x
    x = 102,067,329,719,239.91/10,646,386.80
  6. Step 6: Final answer
    x = 9,587,039.40

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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.