Home / 201,696,814.51-278,334,255.50-112,384,144.35

Finding the Fourth Proportional to 201,696,814.51, 278,334,255.50 and 112,384,144.35

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Solution

The fourth proportional to 201,696,814.51, 278,334,255.50 and 112,384,144.35 is: 155,086,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,696,814.51 : 278,334,255.50 = 112,384,144.35 : x
  2. Step 2: Convert to fraction form
    201,696,814.51/278,334,255.50 = 112,384,144.35/x
  3. Step 3: Cross multiply
    201,696,814.51x = 278,334,255.50 × 112,384,144.35
  4. Step 4: Simplify right side
    201,696,814.51x = 31,280,357,147,661,780
  5. Step 5: Solve for x
    x = 31,280,357,147,661,780/201,696,814.51
  6. Step 6: Final answer
    x = 155,086,024.65

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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.