Home / 908,350,359.60-1,363,163,268.60-391,151,978.40

Finding the Fourth Proportional to 908,350,359.60, 1,363,163,268.60 and 391,151,978.40

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Solution

The fourth proportional to 908,350,359.60, 1,363,163,268.60 and 391,151,978.40 is: 587,002,585.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,350,359.60 : 1,363,163,268.60 = 391,151,978.40 : x
  2. Step 2: Convert to fraction form
    908,350,359.60/1,363,163,268.60 = 391,151,978.40/x
  3. Step 3: Cross multiply
    908,350,359.60x = 1,363,163,268.60 × 391,151,978.40
  4. Step 4: Simplify right side
    908,350,359.60x = 533,204,009,395,100,544
  5. Step 5: Solve for x
    x = 533,204,009,395,100,544/908,350,359.60
  6. Step 6: Final answer
    x = 587,002,585.25

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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.