Home / 28,442,741.04-39,250,874.16-15,390,025.20

Finding the Fourth Proportional to 28,442,741.04, 39,250,874.16 and 15,390,025.20

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Solution

The fourth proportional to 28,442,741.04, 39,250,874.16 and 15,390,025.20 is: 21,238,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442,741.04 : 39,250,874.16 = 15,390,025.20 : x
  2. Step 2: Convert to fraction form
    28,442,741.04/39,250,874.16 = 15,390,025.20/x
  3. Step 3: Cross multiply
    28,442,741.04x = 39,250,874.16 × 15,390,025.20
  4. Step 4: Simplify right side
    28,442,741.04x = 604,071,942,444,428.75
  5. Step 5: Solve for x
    x = 604,071,942,444,428.75/28,442,741.04
  6. Step 6: Final answer
    x = 21,238,176.08

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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.