Home / 764,317,688.40-1,146,476,532.60-457,451,845.20

Finding the Fourth Proportional to 764,317,688.40, 1,146,476,532.60 and 457,451,845.20

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Solution

The fourth proportional to 764,317,688.40, 1,146,476,532.60 and 457,451,845.20 is: 686,177,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,317,688.40 : 1,146,476,532.60 = 457,451,845.20 : x
  2. Step 2: Convert to fraction form
    764,317,688.40/1,146,476,532.60 = 457,451,845.20/x
  3. Step 3: Cross multiply
    764,317,688.40x = 1,146,476,532.60 × 457,451,845.20
  4. Step 4: Simplify right side
    764,317,688.40x = 524,457,805,316,367,872
  5. Step 5: Solve for x
    x = 524,457,805,316,367,872/764,317,688.40
  6. Step 6: Final answer
    x = 686,177,767.80

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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.