Home / 143,756,265.84-198,424,341-85,039,343.16

Finding the Fourth Proportional to 143,756,265.84, 198,424,341 and 85,039,343.16

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Solution

The fourth proportional to 143,756,265.84, 198,424,341 and 85,039,343.16 is: 117,378,366.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,756,265.84 : 198,424,341 = 85,039,343.16 : x
  2. Step 2: Convert to fraction form
    143,756,265.84/198,424,341 = 85,039,343.16/x
  3. Step 3: Cross multiply
    143,756,265.84x = 198,424,341 × 85,039,343.16
  4. Step 4: Simplify right side
    143,756,265.84x = 16,873,875,625,595,856
  5. Step 5: Solve for x
    x = 16,873,875,625,595,856/143,756,265.84
  6. Step 6: Final answer
    x = 117,378,366.27

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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.