Home / 201,623,786.90-302,223,103.95-78,754,627.70

Finding the Fourth Proportional to 201,623,786.90, 302,223,103.95 and 78,754,627.70

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Solution

The fourth proportional to 201,623,786.90, 302,223,103.95 and 78,754,627.70 is: 118,048,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,623,786.90 : 302,223,103.95 = 78,754,627.70 : x
  2. Step 2: Convert to fraction form
    201,623,786.90/302,223,103.95 = 78,754,627.70/x
  3. Step 3: Cross multiply
    201,623,786.90x = 302,223,103.95 × 78,754,627.70
  4. Step 4: Simplify right side
    201,623,786.90x = 23,801,468,033,920,648
  5. Step 5: Solve for x
    x = 23,801,468,033,920,648/201,623,786.90
  6. Step 6: Final answer
    x = 118,048,908.81

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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.