Home / 28,431,020.30-42,646,530.45-10,238,023.40

Finding the Fourth Proportional to 28,431,020.30, 42,646,530.45 and 10,238,023.40

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Solution

The fourth proportional to 28,431,020.30, 42,646,530.45 and 10,238,023.40 is: 15,357,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431,020.30 : 42,646,530.45 = 10,238,023.40 : x
  2. Step 2: Convert to fraction form
    28,431,020.30/42,646,530.45 = 10,238,023.40/x
  3. Step 3: Cross multiply
    28,431,020.30x = 42,646,530.45 × 10,238,023.40
  4. Step 4: Simplify right side
    28,431,020.30x = 436,616,176,675,912.56
  5. Step 5: Solve for x
    x = 436,616,176,675,912.56/28,431,020.30
  6. Step 6: Final answer
    x = 15,357,035.10

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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.