Home / 10,254,930.30-15,382,395.45-6,428,555.10

Finding the Fourth Proportional to 10,254,930.30, 15,382,395.45 and 6,428,555.10

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Solution

The fourth proportional to 10,254,930.30, 15,382,395.45 and 6,428,555.10 is: 9,642,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254,930.30 : 15,382,395.45 = 6,428,555.10 : x
  2. Step 2: Convert to fraction form
    10,254,930.30/15,382,395.45 = 6,428,555.10/x
  3. Step 3: Cross multiply
    10,254,930.30x = 15,382,395.45 × 6,428,555.10
  4. Step 4: Simplify right side
    10,254,930.30x = 98,886,576,720,314.28
  5. Step 5: Solve for x
    x = 98,886,576,720,314.28/10,254,930.30
  6. Step 6: Final answer
    x = 9,642,832.65

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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.