Home / 645,873,342.40-968,810,013.60-531,082,086.40

Finding the Fourth Proportional to 645,873,342.40, 968,810,013.60 and 531,082,086.40

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Solution

The fourth proportional to 645,873,342.40, 968,810,013.60 and 531,082,086.40 is: 796,623,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,873,342.40 : 968,810,013.60 = 531,082,086.40 : x
  2. Step 2: Convert to fraction form
    645,873,342.40/968,810,013.60 = 531,082,086.40/x
  3. Step 3: Cross multiply
    645,873,342.40x = 968,810,013.60 × 531,082,086.40
  4. Step 4: Simplify right side
    645,873,342.40x = 514,517,643,347,900,352
  5. Step 5: Solve for x
    x = 514,517,643,347,900,352/645,873,342.40
  6. Step 6: Final answer
    x = 796,623,129.60

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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.