Home / 1,240,483,513.20-1,711,878,728.88-683,586,489.84

Finding the Fourth Proportional to 1,240,483,513.20, 1,711,878,728.88 and 683,586,489.84

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Solution

The fourth proportional to 1,240,483,513.20, 1,711,878,728.88 and 683,586,489.84 is: 943,355,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,483,513.20 : 1,711,878,728.88 = 683,586,489.84 : x
  2. Step 2: Convert to fraction form
    1,240,483,513.20/1,711,878,728.88 = 683,586,489.84/x
  3. Step 3: Cross multiply
    1,240,483,513.20x = 1,711,878,728.88 × 683,586,489.84
  4. Step 4: Simplify right side
    1,240,483,513.20x = 1,170,217,171,306,840,320
  5. Step 5: Solve for x
    x = 1,170,217,171,306,840,320/1,240,483,513.20
  6. Step 6: Final answer
    x = 943,355,682.57

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Half scale
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Double scale
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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.