Home / 193,632,005.20-290,448,007.80-102,708,792.40

Finding the Fourth Proportional to 193,632,005.20, 290,448,007.80 and 102,708,792.40

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Solution

The fourth proportional to 193,632,005.20, 290,448,007.80 and 102,708,792.40 is: 154,063,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,632,005.20 : 290,448,007.80 = 102,708,792.40 : x
  2. Step 2: Convert to fraction form
    193,632,005.20/290,448,007.80 = 102,708,792.40/x
  3. Step 3: Cross multiply
    193,632,005.20x = 290,448,007.80 × 102,708,792.40
  4. Step 4: Simplify right side
    193,632,005.20x = 29,831,564,136,123,784
  5. Step 5: Solve for x
    x = 29,831,564,136,123,784/193,632,005.20
  6. Step 6: Final answer
    x = 154,063,188.60

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1.5x scale

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.