Home / 15,386,841.56-21,234,993-8,771,587.76

Finding the Fourth Proportional to 15,386,841.56, 21,234,993 and 8,771,587.76

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Solution

The fourth proportional to 15,386,841.56, 21,234,993 and 8,771,587.76 is: 12,105,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386,841.56 : 21,234,993 = 8,771,587.76 : x
  2. Step 2: Convert to fraction form
    15,386,841.56/21,234,993 = 8,771,587.76/x
  3. Step 3: Cross multiply
    15,386,841.56x = 21,234,993 × 8,771,587.76
  4. Step 4: Simplify right side
    15,386,841.56x = 186,264,604,682,485.69
  5. Step 5: Solve for x
    x = 186,264,604,682,485.69/15,386,841.56
  6. Step 6: Final answer
    x = 12,105,447.63

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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.