Home / 857,520,009.60-1,286,280,014.40-531,002,659.20

Finding the Fourth Proportional to 857,520,009.60, 1,286,280,014.40 and 531,002,659.20

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Solution

The fourth proportional to 857,520,009.60, 1,286,280,014.40 and 531,002,659.20 is: 796,503,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,520,009.60 : 1,286,280,014.40 = 531,002,659.20 : x
  2. Step 2: Convert to fraction form
    857,520,009.60/1,286,280,014.40 = 531,002,659.20/x
  3. Step 3: Cross multiply
    857,520,009.60x = 1,286,280,014.40 × 531,002,659.20
  4. Step 4: Simplify right side
    857,520,009.60x = 683,018,108,122,214,272
  5. Step 5: Solve for x
    x = 683,018,108,122,214,272/857,520,009.60
  6. Step 6: Final answer
    x = 796,503,988.80

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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.