Home / 30,985,256.31-42,758,795.21-16,855,974.33

Finding the Fourth Proportional to 30,985,256.31, 42,758,795.21 and 16,855,974.33

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Solution

The fourth proportional to 30,985,256.31, 42,758,795.21 and 16,855,974.33 is: 23,260,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985,256.31 : 42,758,795.21 = 16,855,974.33 : x
  2. Step 2: Convert to fraction form
    30,985,256.31/42,758,795.21 = 16,855,974.33/x
  3. Step 3: Cross multiply
    30,985,256.31x = 42,758,795.21 × 16,855,974.33
  4. Step 4: Simplify right side
    30,985,256.31x = 720,741,154,357,207
  5. Step 5: Solve for x
    x = 720,741,154,357,207/30,985,256.31
  6. Step 6: Final answer
    x = 23,260,777.55

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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.