Home / 1,131,039,007.20-1,696,558,510.80-313,151,308.20

Finding the Fourth Proportional to 1,131,039,007.20, 1,696,558,510.80 and 313,151,308.20

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Solution

The fourth proportional to 1,131,039,007.20, 1,696,558,510.80 and 313,151,308.20 is: 469,726,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,039,007.20 : 1,696,558,510.80 = 313,151,308.20 : x
  2. Step 2: Convert to fraction form
    1,131,039,007.20/1,696,558,510.80 = 313,151,308.20/x
  3. Step 3: Cross multiply
    1,131,039,007.20x = 1,696,558,510.80 × 313,151,308.20
  4. Step 4: Simplify right side
    1,131,039,007.20x = 531,279,517,094,863,808
  5. Step 5: Solve for x
    x = 531,279,517,094,863,808/1,131,039,007.20
  6. Step 6: Final answer
    x = 469,726,962.30

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Double scale
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Similar ratio
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1.5x scale

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.