Home / 225,963,808.16-311,820,872.40-128,176,564.64

Finding the Fourth Proportional to 225,963,808.16, 311,820,872.40 and 128,176,564.64

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Solution

The fourth proportional to 225,963,808.16, 311,820,872.40 and 128,176,564.64 is: 176,878,450.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,963,808.16 : 311,820,872.40 = 128,176,564.64 : x
  2. Step 2: Convert to fraction form
    225,963,808.16/311,820,872.40 = 128,176,564.64/x
  3. Step 3: Cross multiply
    225,963,808.16x = 311,820,872.40 × 128,176,564.64
  4. Step 4: Simplify right side
    225,963,808.16x = 39,968,128,207,279,792
  5. Step 5: Solve for x
    x = 39,968,128,207,279,792/225,963,808.16
  6. Step 6: Final answer
    x = 176,878,450.28

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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.