Home / 15,689,618.16-21,651,170.76-8,720,261.52

Finding the Fourth Proportional to 15,689,618.16, 21,651,170.76 and 8,720,261.52

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Solution

The fourth proportional to 15,689,618.16, 21,651,170.76 and 8,720,261.52 is: 12,033,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,689,618.16 : 21,651,170.76 = 8,720,261.52 : x
  2. Step 2: Convert to fraction form
    15,689,618.16/21,651,170.76 = 8,720,261.52/x
  3. Step 3: Cross multiply
    15,689,618.16x = 21,651,170.76 × 8,720,261.52
  4. Step 4: Simplify right side
    15,689,618.16x = 188,803,871,241,377.16
  5. Step 5: Solve for x
    x = 188,803,871,241,377.16/15,689,618.16
  6. Step 6: Final answer
    x = 12,033,681.72

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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.