Home / 902,041,215.11-1,353,064,345.04-280,347,354.64

Finding the Fourth Proportional to 902,041,215.11, 1,353,064,345.04 and 280,347,354.64

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Solution

The fourth proportional to 902,041,215.11, 1,353,064,345.04 and 280,347,354.64 is: 420,521,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,041,215.11 : 1,353,064,345.04 = 280,347,354.64 : x
  2. Step 2: Convert to fraction form
    902,041,215.11/1,353,064,345.04 = 280,347,354.64/x
  3. Step 3: Cross multiply
    902,041,215.11x = 1,353,064,345.04 × 280,347,354.64
  4. Step 4: Simplify right side
    902,041,215.11x = 379,328,009,789,668,160
  5. Step 5: Solve for x
    x = 379,328,009,789,668,160/902,041,215.11
  6. Step 6: Final answer
    x = 420,521,815.89

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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.