Home / 28,189,635.96-38,900,658.06-15,312,303.48

Finding the Fourth Proportional to 28,189,635.96, 38,900,658.06 and 15,312,303.48

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Solution

The fourth proportional to 28,189,635.96, 38,900,658.06 and 15,312,303.48 is: 21,130,414.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189,635.96 : 38,900,658.06 = 15,312,303.48 : x
  2. Step 2: Convert to fraction form
    28,189,635.96/38,900,658.06 = 15,312,303.48/x
  3. Step 3: Cross multiply
    28,189,635.96x = 38,900,658.06 × 15,312,303.48
  4. Step 4: Simplify right side
    28,189,635.96x = 595,658,681,786,428.12
  5. Step 5: Solve for x
    x = 595,658,681,786,428.12/28,189,635.96
  6. Step 6: Final answer
    x = 21,130,414.12

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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.