Home / 10,428,085.60-15,642,128.40-3,695,624.80

Finding the Fourth Proportional to 10,428,085.60, 15,642,128.40 and 3,695,624.80

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Solution

The fourth proportional to 10,428,085.60, 15,642,128.40 and 3,695,624.80 is: 5,543,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428,085.60 : 15,642,128.40 = 3,695,624.80 : x
  2. Step 2: Convert to fraction form
    10,428,085.60/15,642,128.40 = 3,695,624.80/x
  3. Step 3: Cross multiply
    10,428,085.60x = 15,642,128.40 × 3,695,624.80
  4. Step 4: Simplify right side
    10,428,085.60x = 57,807,437,639,824.32
  5. Step 5: Solve for x
    x = 57,807,437,639,824.32/10,428,085.60
  6. Step 6: Final answer
    x = 5,543,437.20

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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.