Home / 12,455,875.10-18,686,765.10-6,391,542.80

Finding the Fourth Proportional to 12,455,875.10, 18,686,765.10 and 6,391,542.80

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Solution

The fourth proportional to 12,455,875.10, 18,686,765.10 and 6,391,542.80 is: 9,588,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,875.10 : 18,686,765.10 = 6,391,542.80 : x
  2. Step 2: Convert to fraction form
    12,455,875.10/18,686,765.10 = 6,391,542.80/x
  3. Step 3: Cross multiply
    12,455,875.10x = 18,686,765.10 × 6,391,542.80
  4. Step 4: Simplify right side
    12,455,875.10x = 119,437,258,930,196.28
  5. Step 5: Solve for x
    x = 119,437,258,930,196.28/12,455,875.10
  6. Step 6: Final answer
    x = 9,588,829.20

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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.