Home / 15,739,325.81-21,720,314.63-9,125,199.66

Finding the Fourth Proportional to 15,739,325.81, 21,720,314.63 and 9,125,199.66

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Solution

The fourth proportional to 15,739,325.81, 21,720,314.63 and 9,125,199.66 is: 12,592,801.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739,325.81 : 21,720,314.63 = 9,125,199.66 : x
  2. Step 2: Convert to fraction form
    15,739,325.81/21,720,314.63 = 9,125,199.66/x
  3. Step 3: Cross multiply
    15,739,325.81x = 21,720,314.63 × 9,125,199.66
  4. Step 4: Simplify right side
    15,739,325.81x = 198,202,207,719,944.81
  5. Step 5: Solve for x
    x = 198,202,207,719,944.81/15,739,325.81
  6. Step 6: Final answer
    x = 12,592,801.63

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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.