Home / 689,844,420.20-1,034,766,630.30-344,851,293.80

Finding the Fourth Proportional to 689,844,420.20, 1,034,766,630.30 and 344,851,293.80

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Solution

The fourth proportional to 689,844,420.20, 1,034,766,630.30 and 344,851,293.80 is: 517,276,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,844,420.20 : 1,034,766,630.30 = 344,851,293.80 : x
  2. Step 2: Convert to fraction form
    689,844,420.20/1,034,766,630.30 = 344,851,293.80/x
  3. Step 3: Cross multiply
    689,844,420.20x = 1,034,766,630.30 × 344,851,293.80
  4. Step 4: Simplify right side
    689,844,420.20x = 356,840,611,240,021,248
  5. Step 5: Solve for x
    x = 356,840,611,240,021,248/689,844,420.20
  6. Step 6: Final answer
    x = 517,276,940.70

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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.