Home / 398,599,643.70-597,899,465.55-295,287,513.30

Finding the Fourth Proportional to 398,599,643.70, 597,899,465.55 and 295,287,513.30

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Solution

The fourth proportional to 398,599,643.70, 597,899,465.55 and 295,287,513.30 is: 442,931,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,599,643.70 : 597,899,465.55 = 295,287,513.30 : x
  2. Step 2: Convert to fraction form
    398,599,643.70/597,899,465.55 = 295,287,513.30/x
  3. Step 3: Cross multiply
    398,599,643.70x = 597,899,465.55 × 295,287,513.30
  4. Step 4: Simplify right side
    398,599,643.70x = 176,552,246,385,658,496
  5. Step 5: Solve for x
    x = 176,552,246,385,658,496/398,599,643.70
  6. Step 6: Final answer
    x = 442,931,269.95

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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.