Home / 78,735,272.80-108,660,839.12-43,460,082.32

Finding the Fourth Proportional to 78,735,272.80, 108,660,839.12 and 43,460,082.32

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Solution

The fourth proportional to 78,735,272.80, 108,660,839.12 and 43,460,082.32 is: 59,978,315.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,735,272.80 : 108,660,839.12 = 43,460,082.32 : x
  2. Step 2: Convert to fraction form
    78,735,272.80/108,660,839.12 = 43,460,082.32/x
  3. Step 3: Cross multiply
    78,735,272.80x = 108,660,839.12 × 43,460,082.32
  4. Step 4: Simplify right side
    78,735,272.80x = 4,722,409,013,115,477
  5. Step 5: Solve for x
    x = 4,722,409,013,115,477/78,735,272.80
  6. Step 6: Final answer
    x = 59,978,315.25

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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.