Home / 10,502,428.20-15,765,452.10-8,116,848.60

Finding the Fourth Proportional to 10,502,428.20, 15,765,452.10 and 8,116,848.60

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Solution

The fourth proportional to 10,502,428.20, 15,765,452.10 and 8,116,848.60 is: 12,184,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,428.20 : 15,765,452.10 = 8,116,848.60 : x
  2. Step 2: Convert to fraction form
    10,502,428.20/15,765,452.10 = 8,116,848.60/x
  3. Step 3: Cross multiply
    10,502,428.20x = 15,765,452.10 × 8,116,848.60
  4. Step 4: Simplify right side
    10,502,428.20x = 127,965,787,806,252.05
  5. Step 5: Solve for x
    x = 127,965,787,806,252.05/10,502,428.20
  6. Step 6: Final answer
    x = 12,184,400.16

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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.