Home / 722,636,894.12-997,238,912.43-409,371,107.67

Finding the Fourth Proportional to 722,636,894.12, 997,238,912.43 and 409,371,107.67

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Solution

The fourth proportional to 722,636,894.12, 997,238,912.43 and 409,371,107.67 is: 564,932,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,636,894.12 : 997,238,912.43 = 409,371,107.67 : x
  2. Step 2: Convert to fraction form
    722,636,894.12/997,238,912.43 = 409,371,107.67/x
  3. Step 3: Cross multiply
    722,636,894.12x = 997,238,912.43 × 409,371,107.67
  4. Step 4: Simplify right side
    722,636,894.12x = 408,240,798,193,095,232
  5. Step 5: Solve for x
    x = 408,240,798,193,095,232/722,636,894.12
  6. Step 6: Final answer
    x = 564,932,127.76

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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.