Home / 202,107,261.35-278,909,688.78-111,583,668.12

Finding the Fourth Proportional to 202,107,261.35, 278,909,688.78 and 111,583,668.12

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Solution

The fourth proportional to 202,107,261.35, 278,909,688.78 and 111,583,668.12 is: 153,986,382.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,107,261.35 : 278,909,688.78 = 111,583,668.12 : x
  2. Step 2: Convert to fraction form
    202,107,261.35/278,909,688.78 = 111,583,668.12/x
  3. Step 3: Cross multiply
    202,107,261.35x = 278,909,688.78 × 111,583,668.12
  4. Step 4: Simplify right side
    202,107,261.35x = 31,121,766,148,280,004
  5. Step 5: Solve for x
    x = 31,121,766,148,280,004/202,107,261.35
  6. Step 6: Final answer
    x = 153,986,382.98

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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.