Home / 10,257,538.30-15,386,307.45-9,785,146.30

Finding the Fourth Proportional to 10,257,538.30, 15,386,307.45 and 9,785,146.30

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Solution

The fourth proportional to 10,257,538.30, 15,386,307.45 and 9,785,146.30 is: 14,677,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257,538.30 : 15,386,307.45 = 9,785,146.30 : x
  2. Step 2: Convert to fraction form
    10,257,538.30/15,386,307.45 = 9,785,146.30/x
  3. Step 3: Cross multiply
    10,257,538.30x = 15,386,307.45 × 9,785,146.30
  4. Step 4: Simplify right side
    10,257,538.30x = 150,557,269,415,029.94
  5. Step 5: Solve for x
    x = 150,557,269,415,029.94/10,257,538.30
  6. Step 6: Final answer
    x = 14,677,719.45

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Double scale
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Similar ratio
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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.