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Finding the Fourth Proportional to 40,286,714.40, 60,430,071.60 and 13,356,871.20

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Solution

The fourth proportional to 40,286,714.40, 60,430,071.60 and 13,356,871.20 is: 20,035,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,286,714.40 : 60,430,071.60 = 13,356,871.20 : x
  2. Step 2: Convert to fraction form
    40,286,714.40/60,430,071.60 = 13,356,871.20/x
  3. Step 3: Cross multiply
    40,286,714.40x = 60,430,071.60 × 13,356,871.20
  4. Step 4: Simplify right side
    40,286,714.40x = 807,156,682,967,977.88
  5. Step 5: Solve for x
    x = 807,156,682,967,977.88/40,286,714.40
  6. Step 6: Final answer
    x = 20,035,306.80

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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.