Home / 398,237,790.80-597,356,686.20-374,051,320.40

Finding the Fourth Proportional to 398,237,790.80, 597,356,686.20 and 374,051,320.40

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Solution

The fourth proportional to 398,237,790.80, 597,356,686.20 and 374,051,320.40 is: 561,076,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,237,790.80 : 597,356,686.20 = 374,051,320.40 : x
  2. Step 2: Convert to fraction form
    398,237,790.80/597,356,686.20 = 374,051,320.40/x
  3. Step 3: Cross multiply
    398,237,790.80x = 597,356,686.20 × 374,051,320.40
  4. Step 4: Simplify right side
    398,237,790.80x = 223,442,057,222,878,464
  5. Step 5: Solve for x
    x = 223,442,057,222,878,464/398,237,790.80
  6. Step 6: Final answer
    x = 561,076,980.60

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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.