Home / 688,764,552.40-1,033,146,828.60-280,113,979.60

Finding the Fourth Proportional to 688,764,552.40, 1,033,146,828.60 and 280,113,979.60

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Solution

The fourth proportional to 688,764,552.40, 1,033,146,828.60 and 280,113,979.60 is: 420,170,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,764,552.40 : 1,033,146,828.60 = 280,113,979.60 : x
  2. Step 2: Convert to fraction form
    688,764,552.40/1,033,146,828.60 = 280,113,979.60/x
  3. Step 3: Cross multiply
    688,764,552.40x = 1,033,146,828.60 × 280,113,979.60
  4. Step 4: Simplify right side
    688,764,552.40x = 289,398,869,670,265,152
  5. Step 5: Solve for x
    x = 289,398,869,670,265,152/688,764,552.40
  6. Step 6: Final answer
    x = 420,170,969.40

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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.