Home / 147,745,108.40-221,617,662.60-86,523,105.20

Finding the Fourth Proportional to 147,745,108.40, 221,617,662.60 and 86,523,105.20

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Solution

The fourth proportional to 147,745,108.40, 221,617,662.60 and 86,523,105.20 is: 129,784,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,745,108.40 : 221,617,662.60 = 86,523,105.20 : x
  2. Step 2: Convert to fraction form
    147,745,108.40/221,617,662.60 = 86,523,105.20/x
  3. Step 3: Cross multiply
    147,745,108.40x = 221,617,662.60 × 86,523,105.20
  4. Step 4: Simplify right side
    147,745,108.40x = 19,175,048,335,317,904
  5. Step 5: Solve for x
    x = 19,175,048,335,317,904/147,745,108.40
  6. Step 6: Final answer
    x = 129,784,657.80

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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.