Home / 147,745,105.40-221,617,658.10-86,523,102.20

Finding the Fourth Proportional to 147,745,105.40, 221,617,658.10 and 86,523,102.20

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Solution

The fourth proportional to 147,745,105.40, 221,617,658.10 and 86,523,102.20 is: 129,784,653.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,745,105.40 : 221,617,658.10 = 86,523,102.20 : x
  2. Step 2: Convert to fraction form
    147,745,105.40/221,617,658.10 = 86,523,102.20/x
  3. Step 3: Cross multiply
    147,745,105.40x = 221,617,658.10 × 86,523,102.20
  4. Step 4: Simplify right side
    147,745,105.40x = 19,175,047,281,110,956
  5. Step 5: Solve for x
    x = 19,175,047,281,110,956/147,745,105.40
  6. Step 6: Final answer
    x = 129,784,653.30

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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.