Home / 449,326,291.20-673,989,436.80-398,307,955.20

Finding the Fourth Proportional to 449,326,291.20, 673,989,436.80 and 398,307,955.20

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Solution

The fourth proportional to 449,326,291.20, 673,989,436.80 and 398,307,955.20 is: 597,461,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,326,291.20 : 673,989,436.80 = 398,307,955.20 : x
  2. Step 2: Convert to fraction form
    449,326,291.20/673,989,436.80 = 398,307,955.20/x
  3. Step 3: Cross multiply
    449,326,291.20x = 673,989,436.80 × 398,307,955.20
  4. Step 4: Simplify right side
    449,326,291.20x = 268,455,354,398,207,616
  5. Step 5: Solve for x
    x = 268,455,354,398,207,616/449,326,291.20
  6. Step 6: Final answer
    x = 597,461,932.80

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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.