Home / 12,985,612.56-19,459,785.60-7,293,857.76

Finding the Fourth Proportional to 12,985,612.56, 19,459,785.60 and 7,293,857.76

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Solution

The fourth proportional to 12,985,612.56, 19,459,785.60 and 7,293,857.76 is: 10,930,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,612.56 : 19,459,785.60 = 7,293,857.76 : x
  2. Step 2: Convert to fraction form
    12,985,612.56/19,459,785.60 = 7,293,857.76/x
  3. Step 3: Cross multiply
    12,985,612.56x = 19,459,785.60 × 7,293,857.76
  4. Step 4: Simplify right side
    12,985,612.56x = 141,936,908,206,496.25
  5. Step 5: Solve for x
    x = 141,936,908,206,496.25/12,985,612.56
  6. Step 6: Final answer
    x = 10,930,320.58

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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.