Home / 105,378,711.36-145,424,343.57-57,693,170.25

Finding the Fourth Proportional to 105,378,711.36, 145,424,343.57 and 57,693,170.25

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Solution

The fourth proportional to 105,378,711.36, 145,424,343.57 and 57,693,170.25 is: 79,617,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,378,711.36 : 145,424,343.57 = 57,693,170.25 : x
  2. Step 2: Convert to fraction form
    105,378,711.36/145,424,343.57 = 57,693,170.25/x
  3. Step 3: Cross multiply
    105,378,711.36x = 145,424,343.57 × 57,693,170.25
  4. Step 4: Simplify right side
    105,378,711.36x = 8,389,991,411,427,916
  5. Step 5: Solve for x
    x = 8,389,991,411,427,916/105,378,711.36
  6. Step 6: Final answer
    x = 79,617,517.65

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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.