Home / 442,466,492.40-663,699,738.60-398,628,514.80

Finding the Fourth Proportional to 442,466,492.40, 663,699,738.60 and 398,628,514.80

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Solution

The fourth proportional to 442,466,492.40, 663,699,738.60 and 398,628,514.80 is: 597,942,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,466,492.40 : 663,699,738.60 = 398,628,514.80 : x
  2. Step 2: Convert to fraction form
    442,466,492.40/663,699,738.60 = 398,628,514.80/x
  3. Step 3: Cross multiply
    442,466,492.40x = 663,699,738.60 × 398,628,514.80
  4. Step 4: Simplify right side
    442,466,492.40x = 264,569,641,071,266,240
  5. Step 5: Solve for x
    x = 264,569,641,071,266,240/442,466,492.40
  6. Step 6: Final answer
    x = 597,942,772.20

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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.