Home / 643,410,694.26-887,835,712.08-361,088,381.31

Finding the Fourth Proportional to 643,410,694.26, 887,835,712.08 and 361,088,381.31

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Solution

The fourth proportional to 643,410,694.26, 887,835,712.08 and 361,088,381.31 is: 498,262,094.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,410,694.26 : 887,835,712.08 = 361,088,381.31 : x
  2. Step 2: Convert to fraction form
    643,410,694.26/887,835,712.08 = 361,088,381.31/x
  3. Step 3: Cross multiply
    643,410,694.26x = 887,835,712.08 × 361,088,381.31
  4. Step 4: Simplify right side
    643,410,694.26x = 320,587,160,144,178,432
  5. Step 5: Solve for x
    x = 320,587,160,144,178,432/643,410,694.26
  6. Step 6: Final answer
    x = 498,262,094.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.