Home / 90,636,942.36-135,980,401.76-36,087,834.98

Finding the Fourth Proportional to 90,636,942.36, 135,980,401.76 and 36,087,834.98

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Solution

The fourth proportional to 90,636,942.36, 135,980,401.76 and 36,087,834.98 is: 54,141,701.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,636,942.36 : 135,980,401.76 = 36,087,834.98 : x
  2. Step 2: Convert to fraction form
    90,636,942.36/135,980,401.76 = 36,087,834.98/x
  3. Step 3: Cross multiply
    90,636,942.36x = 135,980,401.76 × 36,087,834.98
  4. Step 4: Simplify right side
    90,636,942.36x = 4,907,238,299,228,981
  5. Step 5: Solve for x
    x = 4,907,238,299,228,981/90,636,942.36
  6. Step 6: Final answer
    x = 54,141,701.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.