Home / 54,408,643.60-81,612,965.40-42,079,212.40

Finding the Fourth Proportional to 54,408,643.60, 81,612,965.40 and 42,079,212.40

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Solution

The fourth proportional to 54,408,643.60, 81,612,965.40 and 42,079,212.40 is: 63,118,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,408,643.60 : 81,612,965.40 = 42,079,212.40 : x
  2. Step 2: Convert to fraction form
    54,408,643.60/81,612,965.40 = 42,079,212.40/x
  3. Step 3: Cross multiply
    54,408,643.60x = 81,612,965.40 × 42,079,212.40
  4. Step 4: Simplify right side
    54,408,643.60x = 3,434,209,305,660,451
  5. Step 5: Solve for x
    x = 3,434,209,305,660,451/54,408,643.60
  6. Step 6: Final answer
    x = 63,118,818.60

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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.