Home / 391,584,069.60-587,376,104.40-210,185,541.60

Finding the Fourth Proportional to 391,584,069.60, 587,376,104.40 and 210,185,541.60

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Solution

The fourth proportional to 391,584,069.60, 587,376,104.40 and 210,185,541.60 is: 315,278,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,584,069.60 : 587,376,104.40 = 210,185,541.60 : x
  2. Step 2: Convert to fraction form
    391,584,069.60/587,376,104.40 = 210,185,541.60/x
  3. Step 3: Cross multiply
    391,584,069.60x = 587,376,104.40 × 210,185,541.60
  4. Step 4: Simplify right side
    391,584,069.60x = 123,457,964,626,212,128
  5. Step 5: Solve for x
    x = 123,457,964,626,212,128/391,584,069.60
  6. Step 6: Final answer
    x = 315,278,312.40

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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.