Home / 772,380,618.60-1,157,675,132.70-312,016,535.40

Finding the Fourth Proportional to 772,380,618.60, 1,157,675,132.70 and 312,016,535.40

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Solution

The fourth proportional to 772,380,618.60, 1,157,675,132.70 and 312,016,535.40 is: 467,662,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,380,618.60 : 1,157,675,132.70 = 312,016,535.40 : x
  2. Step 2: Convert to fraction form
    772,380,618.60/1,157,675,132.70 = 312,016,535.40/x
  3. Step 3: Cross multiply
    772,380,618.60x = 1,157,675,132.70 × 312,016,535.40
  4. Step 4: Simplify right side
    772,380,618.60x = 361,213,784,023,789,248
  5. Step 5: Solve for x
    x = 361,213,784,023,789,248/772,380,618.60
  6. Step 6: Final answer
    x = 467,662,931.11

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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.