Home / 13,146,781.19-19,809,908.16-10,803,126.38

Finding the Fourth Proportional to 13,146,781.19, 19,809,908.16 and 10,803,126.38

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Solution

The fourth proportional to 13,146,781.19, 19,809,908.16 and 10,803,126.38 is: 16,278,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,781.19 : 19,809,908.16 = 10,803,126.38 : x
  2. Step 2: Convert to fraction form
    13,146,781.19/19,809,908.16 = 10,803,126.38/x
  3. Step 3: Cross multiply
    13,146,781.19x = 19,809,908.16 × 10,803,126.38
  4. Step 4: Simplify right side
    13,146,781.19x = 214,008,941,428,673.28
  5. Step 5: Solve for x
    x = 214,008,941,428,673.28/13,146,781.19
  6. Step 6: Final answer
    x = 16,278,428.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.