Home / 129,978,381.60-194,920,333.20-43,719,602.40

Finding the Fourth Proportional to 129,978,381.60, 194,920,333.20 and 43,719,602.40

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Solution

The fourth proportional to 129,978,381.60, 194,920,333.20 and 43,719,602.40 is: 65,563,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,978,381.60 : 194,920,333.20 = 43,719,602.40 : x
  2. Step 2: Convert to fraction form
    129,978,381.60/194,920,333.20 = 43,719,602.40/x
  3. Step 3: Cross multiply
    129,978,381.60x = 194,920,333.20 × 43,719,602.40
  4. Step 4: Simplify right side
    129,978,381.60x = 8,521,839,467,179,519
  5. Step 5: Solve for x
    x = 8,521,839,467,179,519/129,978,381.60
  6. Step 6: Final answer
    x = 65,563,514.20

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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.