Home / 194,808,939.81-292,213,335.19-78,224,260.85

Finding the Fourth Proportional to 194,808,939.81, 292,213,335.19 and 78,224,260.85

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Solution

The fourth proportional to 194,808,939.81, 292,213,335.19 and 78,224,260.85 is: 117,336,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,808,939.81 : 292,213,335.19 = 78,224,260.85 : x
  2. Step 2: Convert to fraction form
    194,808,939.81/292,213,335.19 = 78,224,260.85/x
  3. Step 3: Cross multiply
    194,808,939.81x = 292,213,335.19 × 78,224,260.85
  4. Step 4: Simplify right side
    194,808,939.81x = 22,858,172,155,751,044
  5. Step 5: Solve for x
    x = 22,858,172,155,751,044/194,808,939.81
  6. Step 6: Final answer
    x = 117,336,361.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.