Home / 13,137,728.40-19,721,338.20-10,159,117.20

Finding the Fourth Proportional to 13,137,728.40, 19,721,338.20 and 10,159,117.20

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Solution

The fourth proportional to 13,137,728.40, 19,721,338.20 and 10,159,117.20 is: 15,250,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,728.40 : 19,721,338.20 = 10,159,117.20 : x
  2. Step 2: Convert to fraction form
    13,137,728.40/19,721,338.20 = 10,159,117.20/x
  3. Step 3: Cross multiply
    13,137,728.40x = 19,721,338.20 × 10,159,117.20
  4. Step 4: Simplify right side
    13,137,728.40x = 200,351,386,114,637.03
  5. Step 5: Solve for x
    x = 200,351,386,114,637.03/13,137,728.40
  6. Step 6: Final answer
    x = 15,250,078.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.