Home / 71,421,862.12-107,146,583.26-30,480,703.72

Finding the Fourth Proportional to 71,421,862.12, 107,146,583.26 and 30,480,703.72

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Solution

The fourth proportional to 71,421,862.12, 107,146,583.26 and 30,480,703.72 is: 45,726,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,421,862.12 : 107,146,583.26 = 30,480,703.72 : x
  2. Step 2: Convert to fraction form
    71,421,862.12/107,146,583.26 = 30,480,703.72/x
  3. Step 3: Cross multiply
    71,421,862.12x = 107,146,583.26 × 30,480,703.72
  4. Step 4: Simplify right side
    71,421,862.12x = 3,265,903,258,958,372
  5. Step 5: Solve for x
    x = 3,265,903,258,958,372/71,421,862.12
  6. Step 6: Final answer
    x = 45,726,940.77

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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.