Home / 398,945,272.30-598,417,908.45-245,890,264.30

Finding the Fourth Proportional to 398,945,272.30, 598,417,908.45 and 245,890,264.30

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Solution

The fourth proportional to 398,945,272.30, 598,417,908.45 and 245,890,264.30 is: 368,835,396.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,945,272.30 : 598,417,908.45 = 245,890,264.30 : x
  2. Step 2: Convert to fraction form
    398,945,272.30/598,417,908.45 = 245,890,264.30/x
  3. Step 3: Cross multiply
    398,945,272.30x = 598,417,908.45 × 245,890,264.30
  4. Step 4: Simplify right side
    398,945,272.30x = 147,145,137,670,623,712
  5. Step 5: Solve for x
    x = 147,145,137,670,623,712/398,945,272.30
  6. Step 6: Final answer
    x = 368,835,396.45

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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.