Home / 10,659,029.60-15,988,544.40-7,257,807.20

Finding the Fourth Proportional to 10,659,029.60, 15,988,544.40 and 7,257,807.20

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Solution

The fourth proportional to 10,659,029.60, 15,988,544.40 and 7,257,807.20 is: 10,886,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,659,029.60 : 15,988,544.40 = 7,257,807.20 : x
  2. Step 2: Convert to fraction form
    10,659,029.60/15,988,544.40 = 7,257,807.20/x
  3. Step 3: Cross multiply
    10,659,029.60x = 15,988,544.40 × 7,257,807.20
  4. Step 4: Simplify right side
    10,659,029.60x = 116,041,772,663,839.69
  5. Step 5: Solve for x
    x = 116,041,772,663,839.69/10,659,029.60
  6. Step 6: Final answer
    x = 10,886,710.80

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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.