Home / 764,370,742.20-1,146,556,113.30-253,767,478.20

Finding the Fourth Proportional to 764,370,742.20, 1,146,556,113.30 and 253,767,478.20

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Solution

The fourth proportional to 764,370,742.20, 1,146,556,113.30 and 253,767,478.20 is: 380,651,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,370,742.20 : 1,146,556,113.30 = 253,767,478.20 : x
  2. Step 2: Convert to fraction form
    764,370,742.20/1,146,556,113.30 = 253,767,478.20/x
  3. Step 3: Cross multiply
    764,370,742.20x = 1,146,556,113.30 × 253,767,478.20
  4. Step 4: Simplify right side
    764,370,742.20x = 290,958,653,486,934,464
  5. Step 5: Solve for x
    x = 290,958,653,486,934,464/764,370,742.20
  6. Step 6: Final answer
    x = 380,651,217.30

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Double scale
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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.