Home / 680,737,340.72-1,020,331,439.40-414,255,315.20

Finding the Fourth Proportional to 680,737,340.72, 1,020,331,439.40 and 414,255,315.20

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Solution

The fourth proportional to 680,737,340.72, 1,020,331,439.40 and 414,255,315.20 is: 620,911,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,737,340.72 : 1,020,331,439.40 = 414,255,315.20 : x
  2. Step 2: Convert to fraction form
    680,737,340.72/1,020,331,439.40 = 414,255,315.20/x
  3. Step 3: Cross multiply
    680,737,340.72x = 1,020,331,439.40 × 414,255,315.20
  4. Step 4: Simplify right side
    680,737,340.72x = 422,677,722,037,116,672
  5. Step 5: Solve for x
    x = 422,677,722,037,116,672/680,737,340.72
  6. Step 6: Final answer
    x = 620,911,615.62

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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.