Home / 40,465,381.65-55,842,187.08-21,880,477.38

Finding the Fourth Proportional to 40,465,381.65, 55,842,187.08 and 21,880,477.38

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Solution

The fourth proportional to 40,465,381.65, 55,842,187.08 and 21,880,477.38 is: 30,195,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,465,381.65 : 55,842,187.08 = 21,880,477.38 : x
  2. Step 2: Convert to fraction form
    40,465,381.65/55,842,187.08 = 21,880,477.38/x
  3. Step 3: Cross multiply
    40,465,381.65x = 55,842,187.08 × 21,880,477.38
  4. Step 4: Simplify right side
    40,465,381.65x = 1,221,853,711,253,668.25
  5. Step 5: Solve for x
    x = 1,221,853,711,253,668.25/40,465,381.65
  6. Step 6: Final answer
    x = 30,195,037.37

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1.5x scale

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.