Home / 119,293,638.68-164,621,886.54-72,278,548.04

Finding the Fourth Proportional to 119,293,638.68, 164,621,886.54 and 72,278,548.04

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Solution

The fourth proportional to 119,293,638.68, 164,621,886.54 and 72,278,548.04 is: 99,742,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,293,638.68 : 164,621,886.54 = 72,278,548.04 : x
  2. Step 2: Convert to fraction form
    119,293,638.68/164,621,886.54 = 72,278,548.04/x
  3. Step 3: Cross multiply
    119,293,638.68x = 164,621,886.54 × 72,278,548.04
  4. Step 4: Simplify right side
    119,293,638.68x = 11,898,630,934,716,820
  5. Step 5: Solve for x
    x = 11,898,630,934,716,820/119,293,638.68
  6. Step 6: Final answer
    x = 99,742,375.76

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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.