Home / 40,503,506.05-55,894,836.63-21,918,646.77

Finding the Fourth Proportional to 40,503,506.05, 55,894,836.63 and 21,918,646.77

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Solution

The fourth proportional to 40,503,506.05, 55,894,836.63 and 21,918,646.77 is: 30,247,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,503,506.05 : 55,894,836.63 = 21,918,646.77 : x
  2. Step 2: Convert to fraction form
    40,503,506.05/55,894,836.63 = 21,918,646.77/x
  3. Step 3: Cross multiply
    40,503,506.05x = 55,894,836.63 × 21,918,646.77
  4. Step 4: Simplify right side
    40,503,506.05x = 1,225,139,180,359,827.25
  5. Step 5: Solve for x
    x = 1,225,139,180,359,827.25/40,503,506.05
  6. Step 6: Final answer
    x = 30,247,731.61

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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.