Home / 280,955,433.30-421,423,046.45-73,692,188.51

Finding the Fourth Proportional to 280,955,433.30, 421,423,046.45 and 73,692,188.51

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Solution

The fourth proportional to 280,955,433.30, 421,423,046.45 and 73,692,188.51 is: 110,535,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,955,433.30 : 421,423,046.45 = 73,692,188.51 : x
  2. Step 2: Convert to fraction form
    280,955,433.30/421,423,046.45 = 73,692,188.51/x
  3. Step 3: Cross multiply
    280,955,433.30x = 421,423,046.45 × 73,692,188.51
  4. Step 4: Simplify right side
    280,955,433.30x = 31,055,586,578,976,308
  5. Step 5: Solve for x
    x = 31,055,586,578,976,308/280,955,433.30
  6. Step 6: Final answer
    x = 110,535,632.70

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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.