Home / 21,478,923.34-32,175,869.52-18,786,288.94

Finding the Fourth Proportional to 21,478,923.34, 32,175,869.52 and 18,786,288.94

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Solution

The fourth proportional to 21,478,923.34, 32,175,869.52 and 18,786,288.94 is: 28,142,247.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478,923.34 : 32,175,869.52 = 18,786,288.94 : x
  2. Step 2: Convert to fraction form
    21,478,923.34/32,175,869.52 = 18,786,288.94/x
  3. Step 3: Cross multiply
    21,478,923.34x = 32,175,869.52 × 18,786,288.94
  4. Step 4: Simplify right side
    21,478,923.34x = 604,465,181,698,459.12
  5. Step 5: Solve for x
    x = 604,465,181,698,459.12/21,478,923.34
  6. Step 6: Final answer
    x = 28,142,247.73

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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.