Home / 142,012,447.09-195,975,269.10-79,289,506.13

Finding the Fourth Proportional to 142,012,447.09, 195,975,269.10 and 79,289,506.13

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Solution

The fourth proportional to 142,012,447.09, 195,975,269.10 and 79,289,506.13 is: 109,418,453.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,012,447.09 : 195,975,269.10 = 79,289,506.13 : x
  2. Step 2: Convert to fraction form
    142,012,447.09/195,975,269.10 = 79,289,506.13/x
  3. Step 3: Cross multiply
    142,012,447.09x = 195,975,269.10 × 79,289,506.13
  4. Step 4: Simplify right side
    142,012,447.09x = 15,538,782,299,652,972
  5. Step 5: Solve for x
    x = 15,538,782,299,652,972/142,012,447.09
  6. Step 6: Final answer
    x = 109,418,453.23

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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.