Home / 15,401,430.16-21,264,000.78-9,896,926.12

Finding the Fourth Proportional to 15,401,430.16, 21,264,000.78 and 9,896,926.12

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Solution

The fourth proportional to 15,401,430.16, 21,264,000.78 and 9,896,926.12 is: 13,664,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,430.16 : 21,264,000.78 = 9,896,926.12 : x
  2. Step 2: Convert to fraction form
    15,401,430.16/21,264,000.78 = 9,896,926.12/x
  3. Step 3: Cross multiply
    15,401,430.16x = 21,264,000.78 × 9,896,926.12
  4. Step 4: Simplify right side
    15,401,430.16x = 210,448,244,735,282.38
  5. Step 5: Solve for x
    x = 210,448,244,735,282.38/15,401,430.16
  6. Step 6: Final answer
    x = 13,664,201.48

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Double scale
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1.5x scale

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.