Home / 207,116,885.20-310,787,302.20-85,960,584.40

Finding the Fourth Proportional to 207,116,885.20, 310,787,302.20 and 85,960,584.40

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Solution

The fourth proportional to 207,116,885.20, 310,787,302.20 and 85,960,584.40 is: 128,987,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,116,885.20 : 310,787,302.20 = 85,960,584.40 : x
  2. Step 2: Convert to fraction form
    207,116,885.20/310,787,302.20 = 85,960,584.40/x
  3. Step 3: Cross multiply
    207,116,885.20x = 310,787,302.20 × 85,960,584.40
  4. Step 4: Simplify right side
    207,116,885.20x = 26,715,458,121,211,408
  5. Step 5: Solve for x
    x = 26,715,458,121,211,408/207,116,885.20
  6. Step 6: Final answer
    x = 128,987,349.80

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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.