Home / 20,996,840.25-31,507,660.67-8,865,518.45

Finding the Fourth Proportional to 20,996,840.25, 31,507,660.67 and 8,865,518.45

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Solution

The fourth proportional to 20,996,840.25, 31,507,660.67 and 8,865,518.45 is: 13,303,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,840.25 : 31,507,660.67 = 8,865,518.45 : x
  2. Step 2: Convert to fraction form
    20,996,840.25/31,507,660.67 = 8,865,518.45/x
  3. Step 3: Cross multiply
    20,996,840.25x = 31,507,660.67 × 8,865,518.45
  4. Step 4: Simplify right side
    20,996,840.25x = 279,331,746,784,358.47
  5. Step 5: Solve for x
    x = 279,331,746,784,358.47/20,996,840.25
  6. Step 6: Final answer
    x = 13,303,513.46

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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.