Home / 43,143,872.40-64,715,808.60-31,806,464.40

Finding the Fourth Proportional to 43,143,872.40, 64,715,808.60 and 31,806,464.40

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Solution

The fourth proportional to 43,143,872.40, 64,715,808.60 and 31,806,464.40 is: 47,709,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,143,872.40 : 64,715,808.60 = 31,806,464.40 : x
  2. Step 2: Convert to fraction form
    43,143,872.40/64,715,808.60 = 31,806,464.40/x
  3. Step 3: Cross multiply
    43,143,872.40x = 64,715,808.60 × 31,806,464.40
  4. Step 4: Simplify right side
    43,143,872.40x = 2,058,381,062,353,113.75
  5. Step 5: Solve for x
    x = 2,058,381,062,353,113.75/43,143,872.40
  6. Step 6: Final answer
    x = 47,709,696.60

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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.