Home / 257,281,622.28-385,939,229.67-188,400,570.12

Finding the Fourth Proportional to 257,281,622.28, 385,939,229.67 and 188,400,570.12

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Solution

The fourth proportional to 257,281,622.28, 385,939,229.67 and 188,400,570.12 is: 282,613,154.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,281,622.28 : 385,939,229.67 = 188,400,570.12 : x
  2. Step 2: Convert to fraction form
    257,281,622.28/385,939,229.67 = 188,400,570.12/x
  3. Step 3: Cross multiply
    257,281,622.28x = 385,939,229.67 × 188,400,570.12
  4. Step 4: Simplify right side
    257,281,622.28x = 72,711,170,901,501,632
  5. Step 5: Solve for x
    x = 72,711,170,901,501,632/257,281,622.28
  6. Step 6: Final answer
    x = 282,613,154.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.