Home / 726,890,276.40-1,090,335,414.60-440,235,812.40

Finding the Fourth Proportional to 726,890,276.40, 1,090,335,414.60 and 440,235,812.40

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Solution

The fourth proportional to 726,890,276.40, 1,090,335,414.60 and 440,235,812.40 is: 660,353,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,890,276.40 : 1,090,335,414.60 = 440,235,812.40 : x
  2. Step 2: Convert to fraction form
    726,890,276.40/1,090,335,414.60 = 440,235,812.40/x
  3. Step 3: Cross multiply
    726,890,276.40x = 1,090,335,414.60 × 440,235,812.40
  4. Step 4: Simplify right side
    726,890,276.40x = 480,004,697,034,921,728
  5. Step 5: Solve for x
    x = 480,004,697,034,921,728/726,890,276.40
  6. Step 6: Final answer
    x = 660,353,718.60

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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.