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Finding the Fourth Proportional to 356,616,005.20, 534,924,007.80 and 275,894,904.40

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Solution

The fourth proportional to 356,616,005.20, 534,924,007.80 and 275,894,904.40 is: 413,842,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,616,005.20 : 534,924,007.80 = 275,894,904.40 : x
  2. Step 2: Convert to fraction form
    356,616,005.20/534,924,007.80 = 275,894,904.40/x
  3. Step 3: Cross multiply
    356,616,005.20x = 534,924,007.80 × 275,894,904.40
  4. Step 4: Simplify right side
    356,616,005.20x = 147,582,807,993,245,856
  5. Step 5: Solve for x
    x = 147,582,807,993,245,856/356,616,005.20
  6. Step 6: Final answer
    x = 413,842,356.60

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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.