Home / 10,918,810.60-16,378,215.90-8,399,386.60

Finding the Fourth Proportional to 10,918,810.60, 16,378,215.90 and 8,399,386.60

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Solution

The fourth proportional to 10,918,810.60, 16,378,215.90 and 8,399,386.60 is: 12,599,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918,810.60 : 16,378,215.90 = 8,399,386.60 : x
  2. Step 2: Convert to fraction form
    10,918,810.60/16,378,215.90 = 8,399,386.60/x
  3. Step 3: Cross multiply
    10,918,810.60x = 16,378,215.90 × 8,399,386.60
  4. Step 4: Simplify right side
    10,918,810.60x = 137,566,967,162,366.94
  5. Step 5: Solve for x
    x = 137,566,967,162,366.94/10,918,810.60
  6. Step 6: Final answer
    x = 12,599,079.90

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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.