Home / 128,736,399.60-192,955,300.20-52,009,052.40

Finding the Fourth Proportional to 128,736,399.60, 192,955,300.20 and 52,009,052.40

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Solution

The fourth proportional to 128,736,399.60, 192,955,300.20 and 52,009,052.40 is: 77,953,262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,399.60 : 192,955,300.20 = 52,009,052.40 : x
  2. Step 2: Convert to fraction form
    128,736,399.60/192,955,300.20 = 52,009,052.40/x
  3. Step 3: Cross multiply
    128,736,399.60x = 192,955,300.20 × 52,009,052.40
  4. Step 4: Simplify right side
    128,736,399.60x = 10,035,422,318,959,530
  5. Step 5: Solve for x
    x = 10,035,422,318,959,530/128,736,399.60
  6. Step 6: Final answer
    x = 77,953,262.25

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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.