Home / 579,442,851.20-869,164,276.80-443,393,955.20

Finding the Fourth Proportional to 579,442,851.20, 869,164,276.80 and 443,393,955.20

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Solution

The fourth proportional to 579,442,851.20, 869,164,276.80 and 443,393,955.20 is: 665,090,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,442,851.20 : 869,164,276.80 = 443,393,955.20 : x
  2. Step 2: Convert to fraction form
    579,442,851.20/869,164,276.80 = 443,393,955.20/x
  3. Step 3: Cross multiply
    579,442,851.20x = 869,164,276.80 × 443,393,955.20
  4. Step 4: Simplify right side
    579,442,851.20x = 385,382,186,408,899,584
  5. Step 5: Solve for x
    x = 385,382,186,408,899,584/579,442,851.20
  6. Step 6: Final answer
    x = 665,090,932.80

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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.