Home / 829,921,690.66-1,145,293,049.13-477,490,612.80

Finding the Fourth Proportional to 829,921,690.66, 1,145,293,049.13 and 477,490,612.80

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Solution

The fourth proportional to 829,921,690.66, 1,145,293,049.13 and 477,490,612.80 is: 658,937,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,921,690.66 : 1,145,293,049.13 = 477,490,612.80 : x
  2. Step 2: Convert to fraction form
    829,921,690.66/1,145,293,049.13 = 477,490,612.80/x
  3. Step 3: Cross multiply
    829,921,690.66x = 1,145,293,049.13 × 477,490,612.80
  4. Step 4: Simplify right side
    829,921,690.66x = 546,866,679,864,664,256
  5. Step 5: Solve for x
    x = 546,866,679,864,664,256/829,921,690.66
  6. Step 6: Final answer
    x = 658,937,687.76

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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.