Home / 728,275,444.20-1,092,413,166.30-644,095,189.80

Finding the Fourth Proportional to 728,275,444.20, 1,092,413,166.30 and 644,095,189.80

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Solution

The fourth proportional to 728,275,444.20, 1,092,413,166.30 and 644,095,189.80 is: 966,142,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,444.20 : 1,092,413,166.30 = 644,095,189.80 : x
  2. Step 2: Convert to fraction form
    728,275,444.20/1,092,413,166.30 = 644,095,189.80/x
  3. Step 3: Cross multiply
    728,275,444.20x = 1,092,413,166.30 × 644,095,189.80
  4. Step 4: Simplify right side
    728,275,444.20x = 703,618,065,688,017,408
  5. Step 5: Solve for x
    x = 703,618,065,688,017,408/728,275,444.20
  6. Step 6: Final answer
    x = 966,142,784.70

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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.