Home / 90,705,461.40-125,168,142.78-51,541,802.64

Finding the Fourth Proportional to 90,705,461.40, 125,168,142.78 and 51,541,802.64

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Solution

The fourth proportional to 90,705,461.40, 125,168,142.78 and 51,541,802.64 is: 71,124,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,705,461.40 : 125,168,142.78 = 51,541,802.64 : x
  2. Step 2: Convert to fraction form
    90,705,461.40/125,168,142.78 = 51,541,802.64/x
  3. Step 3: Cross multiply
    90,705,461.40x = 125,168,142.78 × 51,541,802.64
  4. Step 4: Simplify right side
    90,705,461.40x = 6,451,391,711,982,101
  5. Step 5: Solve for x
    x = 6,451,391,711,982,101/90,705,461.40
  6. Step 6: Final answer
    x = 71,124,622.62

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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.