Home / 129,492,045.55-194,238,068.33-128,736,218.35

Finding the Fourth Proportional to 129,492,045.55, 194,238,068.33 and 128,736,218.35

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Solution

The fourth proportional to 129,492,045.55, 194,238,068.33 and 128,736,218.35 is: 193,104,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,492,045.55 : 194,238,068.33 = 128,736,218.35 : x
  2. Step 2: Convert to fraction form
    129,492,045.55/194,238,068.33 = 128,736,218.35/x
  3. Step 3: Cross multiply
    129,492,045.55x = 194,238,068.33 × 128,736,218.35
  4. Step 4: Simplify right side
    129,492,045.55x = 25,005,474,376,413,100
  5. Step 5: Solve for x
    x = 25,005,474,376,413,100/129,492,045.55
  6. Step 6: Final answer
    x = 193,104,327.53

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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.