Home / 194,894,288.40-292,378,302.90-78,318,719.22

Finding the Fourth Proportional to 194,894,288.40, 292,378,302.90 and 78,318,719.22

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Solution

The fourth proportional to 194,894,288.40, 292,378,302.90 and 78,318,719.22 is: 117,492,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,894,288.40 : 292,378,302.90 = 78,318,719.22 : x
  2. Step 2: Convert to fraction form
    194,894,288.40/292,378,302.90 = 78,318,719.22/x
  3. Step 3: Cross multiply
    194,894,288.40x = 292,378,302.90 × 78,318,719.22
  4. Step 4: Simplify right side
    194,894,288.40x = 22,898,694,210,845,208
  5. Step 5: Solve for x
    x = 22,898,694,210,845,208/194,894,288.40
  6. Step 6: Final answer
    x = 117,492,895.25

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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.