Home / 28,182,015.90-42,248,420.10-10,921,993.20

Finding the Fourth Proportional to 28,182,015.90, 42,248,420.10 and 10,921,993.20

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Solution

The fourth proportional to 28,182,015.90, 42,248,420.10 and 10,921,993.20 is: 16,373,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182,015.90 : 42,248,420.10 = 10,921,993.20 : x
  2. Step 2: Convert to fraction form
    28,182,015.90/42,248,420.10 = 10,921,993.20/x
  3. Step 3: Cross multiply
    28,182,015.90x = 42,248,420.10 × 10,921,993.20
  4. Step 4: Simplify right side
    28,182,015.90x = 461,436,957,042,943.31
  5. Step 5: Solve for x
    x = 461,436,957,042,943.31/28,182,015.90
  6. Step 6: Final answer
    x = 16,373,454.57

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1.5x scale

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.