Home / 1,287,893,366.16-1,931,430,494.61-414,291,380.46

Finding the Fourth Proportional to 1,287,893,366.16, 1,931,430,494.61 and 414,291,380.46

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Solution

The fourth proportional to 1,287,893,366.16, 1,931,430,494.61 and 414,291,380.46 is: 621,305,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,893,366.16 : 1,931,430,494.61 = 414,291,380.46 : x
  2. Step 2: Convert to fraction form
    1,287,893,366.16/1,931,430,494.61 = 414,291,380.46/x
  3. Step 3: Cross multiply
    1,287,893,366.16x = 1,931,430,494.61 × 414,291,380.46
  4. Step 4: Simplify right side
    1,287,893,366.16x = 800,175,005,874,517,376
  5. Step 5: Solve for x
    x = 800,175,005,874,517,376/1,287,893,366.16
  6. Step 6: Final answer
    x = 621,305,324.57

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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.