Home / 118,012,131.20-177,018,196.80-72,095,628.80

Finding the Fourth Proportional to 118,012,131.20, 177,018,196.80 and 72,095,628.80

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Solution

The fourth proportional to 118,012,131.20, 177,018,196.80 and 72,095,628.80 is: 108,143,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,012,131.20 : 177,018,196.80 = 72,095,628.80 : x
  2. Step 2: Convert to fraction form
    118,012,131.20/177,018,196.80 = 72,095,628.80/x
  3. Step 3: Cross multiply
    118,012,131.20x = 177,018,196.80 × 72,095,628.80
  4. Step 4: Simplify right side
    118,012,131.20x = 12,762,238,207,338,148
  5. Step 5: Solve for x
    x = 12,762,238,207,338,148/118,012,131.20
  6. Step 6: Final answer
    x = 108,143,443.20

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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.