Home / 40,564,673.61-55,979,444.50-21,979,808.84

Finding the Fourth Proportional to 40,564,673.61, 55,979,444.50 and 21,979,808.84

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Solution

The fourth proportional to 40,564,673.61, 55,979,444.50 and 21,979,808.84 is: 30,332,241.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,564,673.61 : 55,979,444.50 = 21,979,808.84 : x
  2. Step 2: Convert to fraction form
    40,564,673.61/55,979,444.50 = 21,979,808.84/x
  3. Step 3: Cross multiply
    40,564,673.61x = 55,979,444.50 × 21,979,808.84
  4. Step 4: Simplify right side
    40,564,673.61x = 1,230,417,489,130,610.50
  5. Step 5: Solve for x
    x = 1,230,417,489,130,610.50/40,564,673.61
  6. Step 6: Final answer
    x = 30,332,241.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.