Home / 172,861,091.88-238,521,802.50-99,508,056.36

Finding the Fourth Proportional to 172,861,091.88, 238,521,802.50 and 99,508,056.36

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Solution

The fourth proportional to 172,861,091.88, 238,521,802.50 and 99,508,056.36 is: 137,305,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,861,091.88 : 238,521,802.50 = 99,508,056.36 : x
  2. Step 2: Convert to fraction form
    172,861,091.88/238,521,802.50 = 99,508,056.36/x
  3. Step 3: Cross multiply
    172,861,091.88x = 238,521,802.50 × 99,508,056.36
  4. Step 4: Simplify right side
    172,861,091.88x = 23,734,840,966,258,788
  5. Step 5: Solve for x
    x = 23,734,840,966,258,788/172,861,091.88
  6. Step 6: Final answer
    x = 137,305,860.49

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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.