Home / 30,806,071.28-42,512,388.67-16,868,307.93

Finding the Fourth Proportional to 30,806,071.28, 42,512,388.67 and 16,868,307.93

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Solution

The fourth proportional to 30,806,071.28, 42,512,388.67 and 16,868,307.93 is: 23,278,270.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,806,071.28 : 42,512,388.67 = 16,868,307.93 : x
  2. Step 2: Convert to fraction form
    30,806,071.28/42,512,388.67 = 16,868,307.93/x
  3. Step 3: Cross multiply
    30,806,071.28x = 42,512,388.67 × 16,868,307.93
  4. Step 4: Simplify right side
    30,806,071.28x = 717,112,063,178,101.88
  5. Step 5: Solve for x
    x = 717,112,063,178,101.88/30,806,071.28
  6. Step 6: Final answer
    x = 23,278,270.59

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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.