Home / 140,619,706.91-194,052,599.16-77,894,428.58

Finding the Fourth Proportional to 140,619,706.91, 194,052,599.16 and 77,894,428.58

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Solution

The fourth proportional to 140,619,706.91, 194,052,599.16 and 77,894,428.58 is: 107,492,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,619,706.91 : 194,052,599.16 = 77,894,428.58 : x
  2. Step 2: Convert to fraction form
    140,619,706.91/194,052,599.16 = 77,894,428.58/x
  3. Step 3: Cross multiply
    140,619,706.91x = 194,052,599.16 × 77,894,428.58
  4. Step 4: Simplify right side
    140,619,706.91x = 15,115,616,326,031,988
  5. Step 5: Solve for x
    x = 15,115,616,326,031,988/140,619,706.91
  6. Step 6: Final answer
    x = 107,492,873.21

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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.