Home / 645,672,475,232.80-968,508,712,849.20-344,414,302,986.40

Finding the Fourth Proportional to 645,672,475,232.80, 968,508,712,849.20 and 344,414,302,986.40

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Solution

The fourth proportional to 645,672,475,232.80, 968,508,712,849.20 and 344,414,302,986.40 is: 516,621,454,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,672,475,232.80 : 968,508,712,849.20 = 344,414,302,986.40 : x
  2. Step 2: Convert to fraction form
    645,672,475,232.80/968,508,712,849.20 = 344,414,302,986.40/x
  3. Step 3: Cross multiply
    645,672,475,232.80x = 968,508,712,849.20 × 344,414,302,986.40
  4. Step 4: Simplify right side
    645,672,475,232.80x = 333,568,253,272,212,675,493,888
  5. Step 5: Solve for x
    x = 333,568,253,272,212,675,493,888/645,672,475,232.80
  6. Step 6: Final answer
    x = 516,621,454,479.60

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Double scale
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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.