Home / 398,574,643.20-597,956,443.20-204,516,009.60

Finding the Fourth Proportional to 398,574,643.20, 597,956,443.20 and 204,516,009.60

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Solution

The fourth proportional to 398,574,643.20, 597,956,443.20 and 204,516,009.60 is: 306,822,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,574,643.20 : 597,956,443.20 = 204,516,009.60 : x
  2. Step 2: Convert to fraction form
    398,574,643.20/597,956,443.20 = 204,516,009.60/x
  3. Step 3: Cross multiply
    398,574,643.20x = 597,956,443.20 × 204,516,009.60
  4. Step 4: Simplify right side
    398,574,643.20x = 122,291,665,677,873,056
  5. Step 5: Solve for x
    x = 122,291,665,677,873,056/398,574,643.20
  6. Step 6: Final answer
    x = 306,822,493.01

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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.