Home / 20,855,272.39-31,300,918.53-14,470,008.78

Finding the Fourth Proportional to 20,855,272.39, 31,300,918.53 and 14,470,008.78

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Solution

The fourth proportional to 20,855,272.39, 31,300,918.53 and 14,470,008.78 is: 21,717,509.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855,272.39 : 31,300,918.53 = 14,470,008.78 : x
  2. Step 2: Convert to fraction form
    20,855,272.39/31,300,918.53 = 14,470,008.78/x
  3. Step 3: Cross multiply
    20,855,272.39x = 31,300,918.53 × 14,470,008.78
  4. Step 4: Simplify right side
    20,855,272.39x = 452,924,565,833,786.25
  5. Step 5: Solve for x
    x = 452,924,565,833,786.25/20,855,272.39
  6. Step 6: Final answer
    x = 21,717,509.00

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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.