Home / 128,184,052.32-176,893,297.42-71,668,787.18

Finding the Fourth Proportional to 128,184,052.32, 176,893,297.42 and 71,668,787.18

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Solution

The fourth proportional to 128,184,052.32, 176,893,297.42 and 71,668,787.18 is: 98,902,537.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,184,052.32 : 176,893,297.42 = 71,668,787.18 : x
  2. Step 2: Convert to fraction form
    128,184,052.32/176,893,297.42 = 71,668,787.18/x
  3. Step 3: Cross multiply
    128,184,052.32x = 176,893,297.42 × 71,668,787.18
  4. Step 4: Simplify right side
    128,184,052.32x = 12,677,728,085,298,784
  5. Step 5: Solve for x
    x = 12,677,728,085,298,784/128,184,052.32
  6. Step 6: Final answer
    x = 98,902,537.84

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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.