Home / 1,256,550,917.87-1,733,984,318.43-720,318,146.88

Finding the Fourth Proportional to 1,256,550,917.87, 1,733,984,318.43 and 720,318,146.88

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Solution

The fourth proportional to 1,256,550,917.87, 1,733,984,318.43 and 720,318,146.88 is: 994,006,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,550,917.87 : 1,733,984,318.43 = 720,318,146.88 : x
  2. Step 2: Convert to fraction form
    1,256,550,917.87/1,733,984,318.43 = 720,318,146.88/x
  3. Step 3: Cross multiply
    1,256,550,917.87x = 1,733,984,318.43 × 720,318,146.88
  4. Step 4: Simplify right side
    1,256,550,917.87x = 1,249,020,370,969,306,368
  5. Step 5: Solve for x
    x = 1,249,020,370,969,306,368/1,256,550,917.87
  6. Step 6: Final answer
    x = 994,006,970.36

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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.