Home / 140,703,809.20-194,171,275.12-77,983,956.41

Finding the Fourth Proportional to 140,703,809.20, 194,171,275.12 and 77,983,956.41

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Solution

The fourth proportional to 140,703,809.20, 194,171,275.12 and 77,983,956.41 is: 107,617,870.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703,809.20 : 194,171,275.12 = 77,983,956.41 : x
  2. Step 2: Convert to fraction form
    140,703,809.20/194,171,275.12 = 77,983,956.41/x
  3. Step 3: Cross multiply
    140,703,809.20x = 194,171,275.12 × 77,983,956.41
  4. Step 4: Simplify right side
    140,703,809.20x = 15,142,244,255,032,198
  5. Step 5: Solve for x
    x = 15,142,244,255,032,198/140,703,809.20
  6. Step 6: Final answer
    x = 107,617,870.06

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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.