Home / 152,388,819.09-210,314,015.97-85,425,863.23

Finding the Fourth Proportional to 152,388,819.09, 210,314,015.97 and 85,425,863.23

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Solution

The fourth proportional to 152,388,819.09, 210,314,015.97 and 85,425,863.23 is: 117,897,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,388,819.09 : 210,314,015.97 = 85,425,863.23 : x
  2. Step 2: Convert to fraction form
    152,388,819.09/210,314,015.97 = 85,425,863.23/x
  3. Step 3: Cross multiply
    152,388,819.09x = 210,314,015.97 × 85,425,863.23
  4. Step 4: Simplify right side
    152,388,819.09x = 17,966,256,363,605,256
  5. Step 5: Solve for x
    x = 17,966,256,363,605,256/152,388,819.09
  6. Step 6: Final answer
    x = 117,897,470.90

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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.