Home / 821,670,706.87-1,133,244,409.75-722,339,069.65

Finding the Fourth Proportional to 821,670,706.87, 1,133,244,409.75 and 722,339,069.65

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Solution

The fourth proportional to 821,670,706.87, 1,133,244,409.75 and 722,339,069.65 is: 996,246,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,670,706.87 : 1,133,244,409.75 = 722,339,069.65 : x
  2. Step 2: Convert to fraction form
    821,670,706.87/1,133,244,409.75 = 722,339,069.65/x
  3. Step 3: Cross multiply
    821,670,706.87x = 1,133,244,409.75 × 722,339,069.65
  4. Step 4: Simplify right side
    821,670,706.87x = 818,586,712,624,878,336
  5. Step 5: Solve for x
    x = 818,586,712,624,878,336/821,670,706.87
  6. Step 6: Final answer
    x = 996,246,678.60

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1.5x scale

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.