Home / 43,143,876.90-64,715,815.35-31,806,468.90

Finding the Fourth Proportional to 43,143,876.90, 64,715,815.35 and 31,806,468.90

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Solution

The fourth proportional to 43,143,876.90, 64,715,815.35 and 31,806,468.90 is: 47,709,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,143,876.90 : 64,715,815.35 = 31,806,468.90 : x
  2. Step 2: Convert to fraction form
    43,143,876.90/64,715,815.35 = 31,806,468.90/x
  3. Step 3: Cross multiply
    43,143,876.90x = 64,715,815.35 × 31,806,468.90
  4. Step 4: Simplify right side
    43,143,876.90x = 2,058,381,568,267,917.50
  5. Step 5: Solve for x
    x = 2,058,381,568,267,917.50/43,143,876.90
  6. Step 6: Final answer
    x = 47,709,703.35

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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.