Home / 152,388,813.12-210,314,007.75-85,425,857.27

Finding the Fourth Proportional to 152,388,813.12, 210,314,007.75 and 85,425,857.27

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Solution

The fourth proportional to 152,388,813.12, 210,314,007.75 and 85,425,857.27 is: 117,897,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,388,813.12 : 210,314,007.75 = 85,425,857.27 : x
  2. Step 2: Convert to fraction form
    152,388,813.12/210,314,007.75 = 85,425,857.27/x
  3. Step 3: Cross multiply
    152,388,813.12x = 210,314,007.75 × 85,425,857.27
  4. Step 4: Simplify right side
    152,388,813.12x = 17,966,254,407,933,172
  5. Step 5: Solve for x
    x = 17,966,254,407,933,172/152,388,813.12
  6. Step 6: Final answer
    x = 117,897,462.68

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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.