Home / 15,235,029.51-21,020,273.72-9,034,921.42

Finding the Fourth Proportional to 15,235,029.51, 21,020,273.72 and 9,034,921.42

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Solution

The fourth proportional to 15,235,029.51, 21,020,273.72 and 9,034,921.42 is: 12,465,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235,029.51 : 21,020,273.72 = 9,034,921.42 : x
  2. Step 2: Convert to fraction form
    15,235,029.51/21,020,273.72 = 9,034,921.42/x
  3. Step 3: Cross multiply
    15,235,029.51x = 21,020,273.72 × 9,034,921.42
  4. Step 4: Simplify right side
    15,235,029.51x = 189,916,521,223,246.75
  5. Step 5: Solve for x
    x = 189,916,521,223,246.75/15,235,029.51
  6. Step 6: Final answer
    x = 12,465,779.68

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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.