Home / 398,578,109.20-597,979,138.20-194,112,854.80

Finding the Fourth Proportional to 398,578,109.20, 597,979,138.20 and 194,112,854.80

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Solution

The fourth proportional to 398,578,109.20, 597,979,138.20 and 194,112,854.80 is: 291,223,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,578,109.20 : 597,979,138.20 = 194,112,854.80 : x
  2. Step 2: Convert to fraction form
    398,578,109.20/597,979,138.20 = 194,112,854.80/x
  3. Step 3: Cross multiply
    398,578,109.20x = 597,979,138.20 × 194,112,854.80
  4. Step 4: Simplify right side
    398,578,109.20x = 116,075,437,626,845,744
  5. Step 5: Solve for x
    x = 116,075,437,626,845,744/398,578,109.20
  6. Step 6: Final answer
    x = 291,223,815.23

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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.