Home / 398,237,780.80-597,356,671.20-374,051,310.40

Finding the Fourth Proportional to 398,237,780.80, 597,356,671.20 and 374,051,310.40

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Solution

The fourth proportional to 398,237,780.80, 597,356,671.20 and 374,051,310.40 is: 561,076,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,237,780.80 : 597,356,671.20 = 374,051,310.40 : x
  2. Step 2: Convert to fraction form
    398,237,780.80/597,356,671.20 = 374,051,310.40/x
  3. Step 3: Cross multiply
    398,237,780.80x = 597,356,671.20 × 374,051,310.40
  4. Step 4: Simplify right side
    398,237,780.80x = 223,442,045,638,541,952
  5. Step 5: Solve for x
    x = 223,442,045,638,541,952/398,237,780.80
  6. Step 6: Final answer
    x = 561,076,965.60

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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.