Home / 20,763,397.30-31,145,843.58-7,808,360.16

Finding the Fourth Proportional to 20,763,397.30, 31,145,843.58 and 7,808,360.16

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Solution

The fourth proportional to 20,763,397.30, 31,145,843.58 and 7,808,360.16 is: 11,712,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,397.30 : 31,145,843.58 = 7,808,360.16 : x
  2. Step 2: Convert to fraction form
    20,763,397.30/31,145,843.58 = 7,808,360.16/x
  3. Step 3: Cross multiply
    20,763,397.30x = 31,145,843.58 × 7,808,360.16
  4. Step 4: Simplify right side
    20,763,397.30x = 243,197,964,159,663.75
  5. Step 5: Solve for x
    x = 243,197,964,159,663.75/20,763,397.30
  6. Step 6: Final answer
    x = 11,712,821.40

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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.