Home / 40,503,509.55-55,894,841.46-21,918,650.28

Finding the Fourth Proportional to 40,503,509.55, 55,894,841.46 and 21,918,650.28

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Solution

The fourth proportional to 40,503,509.55, 55,894,841.46 and 21,918,650.28 is: 30,247,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,503,509.55 : 55,894,841.46 = 21,918,650.28 : x
  2. Step 2: Convert to fraction form
    40,503,509.55/55,894,841.46 = 21,918,650.28/x
  3. Step 3: Cross multiply
    40,503,509.55x = 55,894,841.46 × 21,918,650.28
  4. Step 4: Simplify right side
    40,503,509.55x = 1,225,139,482,417,784.75
  5. Step 5: Solve for x
    x = 1,225,139,482,417,784.75/40,503,509.55
  6. Step 6: Final answer
    x = 30,247,736.46

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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.