Home / 30,985,250.56-42,758,787.27-16,855,968.58

Finding the Fourth Proportional to 30,985,250.56, 42,758,787.27 and 16,855,968.58

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Solution

The fourth proportional to 30,985,250.56, 42,758,787.27 and 16,855,968.58 is: 23,260,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985,250.56 : 42,758,787.27 = 16,855,968.58 : x
  2. Step 2: Convert to fraction form
    30,985,250.56/42,758,787.27 = 16,855,968.58/x
  3. Step 3: Cross multiply
    30,985,250.56x = 42,758,787.27 × 16,855,968.58
  4. Step 4: Simplify right side
    30,985,250.56x = 720,740,774,742,024
  5. Step 5: Solve for x
    x = 720,740,774,742,024/30,985,250.56
  6. Step 6: Final answer
    x = 23,260,769.62

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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.