Home / 20,615,274.12-30,926,897.10-7,834,782.45

Finding the Fourth Proportional to 20,615,274.12, 30,926,897.10 and 7,834,782.45

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Solution

The fourth proportional to 20,615,274.12, 30,926,897.10 and 7,834,782.45 is: 11,753,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615,274.12 : 30,926,897.10 = 7,834,782.45 : x
  2. Step 2: Convert to fraction form
    20,615,274.12/30,926,897.10 = 7,834,782.45/x
  3. Step 3: Cross multiply
    20,615,274.12x = 30,926,897.10 × 7,834,782.45
  4. Step 4: Simplify right side
    20,615,274.12x = 242,305,510,632,035.91
  5. Step 5: Solve for x
    x = 242,305,510,632,035.91/20,615,274.12
  6. Step 6: Final answer
    x = 11,753,688.51

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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.