Home / 827,486,124.68-1,141,938,778.92-456,221,471.24

Finding the Fourth Proportional to 827,486,124.68, 1,141,938,778.92 and 456,221,471.24

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Solution

The fourth proportional to 827,486,124.68, 1,141,938,778.92 and 456,221,471.24 is: 629,590,000.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,486,124.68 : 1,141,938,778.92 = 456,221,471.24 : x
  2. Step 2: Convert to fraction form
    827,486,124.68/1,141,938,778.92 = 456,221,471.24/x
  3. Step 3: Cross multiply
    827,486,124.68x = 1,141,938,778.92 × 456,221,471.24
  4. Step 4: Simplify right side
    827,486,124.68x = 520,976,989,786,012,672
  5. Step 5: Solve for x
    x = 520,976,989,786,012,672/827,486,124.68
  6. Step 6: Final answer
    x = 629,590,000.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.