Home / 40,144,723.60-55,399,423.08-21,810,159.76

Finding the Fourth Proportional to 40,144,723.60, 55,399,423.08 and 21,810,159.76

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Solution

The fourth proportional to 40,144,723.60, 55,399,423.08 and 21,810,159.76 is: 30,097,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,144,723.60 : 55,399,423.08 = 21,810,159.76 : x
  2. Step 2: Convert to fraction form
    40,144,723.60/55,399,423.08 = 21,810,159.76/x
  3. Step 3: Cross multiply
    40,144,723.60x = 55,399,423.08 × 21,810,159.76
  4. Step 4: Simplify right side
    40,144,723.60x = 1,208,270,267,986,631.25
  5. Step 5: Solve for x
    x = 1,208,270,267,986,631.25/40,144,723.60
  6. Step 6: Final answer
    x = 30,097,859.93

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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.