Home / 800,911,211.40-1,201,366,817.10-340,733,752.20

Finding the Fourth Proportional to 800,911,211.40, 1,201,366,817.10 and 340,733,752.20

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Solution

The fourth proportional to 800,911,211.40, 1,201,366,817.10 and 340,733,752.20 is: 511,100,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,911,211.40 : 1,201,366,817.10 = 340,733,752.20 : x
  2. Step 2: Convert to fraction form
    800,911,211.40/1,201,366,817.10 = 340,733,752.20/x
  3. Step 3: Cross multiply
    800,911,211.40x = 1,201,366,817.10 × 340,733,752.20
  4. Step 4: Simplify right side
    800,911,211.40x = 409,346,223,359,054,080
  5. Step 5: Solve for x
    x = 409,346,223,359,054,080/800,911,211.40
  6. Step 6: Final answer
    x = 511,100,628.30

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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.