Home / 136,142,563.16-187,877,936.22-74,263,176.92

Finding the Fourth Proportional to 136,142,563.16, 187,877,936.22 and 74,263,176.92

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Solution

The fourth proportional to 136,142,563.16, 187,877,936.22 and 74,263,176.92 is: 102,483,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,142,563.16 : 187,877,936.22 = 74,263,176.92 : x
  2. Step 2: Convert to fraction form
    136,142,563.16/187,877,936.22 = 74,263,176.92/x
  3. Step 3: Cross multiply
    136,142,563.16x = 187,877,936.22 × 74,263,176.92
  4. Step 4: Simplify right side
    136,142,563.16x = 13,952,412,416,870,336
  5. Step 5: Solve for x
    x = 13,952,412,416,870,336/136,142,563.16
  6. Step 6: Final answer
    x = 102,483,838.21

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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.