Home / 56,712,658.60-85,068,987.90-18,378,047.80

Finding the Fourth Proportional to 56,712,658.60, 85,068,987.90 and 18,378,047.80

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Solution

The fourth proportional to 56,712,658.60, 85,068,987.90 and 18,378,047.80 is: 27,567,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,712,658.60 : 85,068,987.90 = 18,378,047.80 : x
  2. Step 2: Convert to fraction form
    56,712,658.60/85,068,987.90 = 18,378,047.80/x
  3. Step 3: Cross multiply
    56,712,658.60x = 85,068,987.90 × 18,378,047.80
  4. Step 4: Simplify right side
    56,712,658.60x = 1,563,401,925,923,821.75
  5. Step 5: Solve for x
    x = 1,563,401,925,923,821.75/56,712,658.60
  6. Step 6: Final answer
    x = 27,567,071.70

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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.