Home / 87,208,748.60-130,813,122.90-79,130,845.40

Finding the Fourth Proportional to 87,208,748.60, 130,813,122.90 and 79,130,845.40

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Solution

The fourth proportional to 87,208,748.60, 130,813,122.90 and 79,130,845.40 is: 118,696,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,208,748.60 : 130,813,122.90 = 79,130,845.40 : x
  2. Step 2: Convert to fraction form
    87,208,748.60/130,813,122.90 = 79,130,845.40/x
  3. Step 3: Cross multiply
    87,208,748.60x = 130,813,122.90 × 79,130,845.40
  4. Step 4: Simplify right side
    87,208,748.60x = 10,351,353,004,491,100
  5. Step 5: Solve for x
    x = 10,351,353,004,491,100/87,208,748.60
  6. Step 6: Final answer
    x = 118,696,268.10

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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.