Home / 15,459,460.61-21,342,338.28-11,919,525.72

Finding the Fourth Proportional to 15,459,460.61, 21,342,338.28 and 11,919,525.72

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Solution

The fourth proportional to 15,459,460.61, 21,342,338.28 and 11,919,525.72 is: 16,455,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459,460.61 : 21,342,338.28 = 11,919,525.72 : x
  2. Step 2: Convert to fraction form
    15,459,460.61/21,342,338.28 = 11,919,525.72/x
  3. Step 3: Cross multiply
    15,459,460.61x = 21,342,338.28 × 11,919,525.72
  4. Step 4: Simplify right side
    15,459,460.61x = 254,390,550,053,400.59
  5. Step 5: Solve for x
    x = 254,390,550,053,400.59/15,459,460.61
  6. Step 6: Final answer
    x = 16,455,331.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.