Home / 10,642,089.60-15,963,134.40-7,240,867.20

Finding the Fourth Proportional to 10,642,089.60, 15,963,134.40 and 7,240,867.20

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Solution

The fourth proportional to 10,642,089.60, 15,963,134.40 and 7,240,867.20 is: 10,861,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642,089.60 : 15,963,134.40 = 7,240,867.20 : x
  2. Step 2: Convert to fraction form
    10,642,089.60/15,963,134.40 = 7,240,867.20/x
  3. Step 3: Cross multiply
    10,642,089.60x = 15,963,134.40 × 7,240,867.20
  4. Step 4: Simplify right side
    10,642,089.60x = 115,586,936,286,151.69
  5. Step 5: Solve for x
    x = 115,586,936,286,151.69/10,642,089.60
  6. Step 6: Final answer
    x = 10,861,300.80

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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.