Home / 879,956,000.20-1,320,941,769.90-516,655,059.40

Finding the Fourth Proportional to 879,956,000.20, 1,320,941,769.90 and 516,655,059.40

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Solution

The fourth proportional to 879,956,000.20, 1,320,941,769.90 and 516,655,059.40 is: 775,574,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,956,000.20 : 1,320,941,769.90 = 516,655,059.40 : x
  2. Step 2: Convert to fraction form
    879,956,000.20/1,320,941,769.90 = 516,655,059.40/x
  3. Step 3: Cross multiply
    879,956,000.20x = 1,320,941,769.90 × 516,655,059.40
  4. Step 4: Simplify right side
    879,956,000.20x = 682,471,248,591,625,600
  5. Step 5: Solve for x
    x = 682,471,248,591,625,600/879,956,000.20
  6. Step 6: Final answer
    x = 775,574,288.30

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1.5x scale

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.