Home / 278,820,290,596.02-418,315,790,180.16-142,778,737,574.28

Finding the Fourth Proportional to 278,820,290,596.02, 418,315,790,180.16 and 142,778,737,574.28

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Solution

The fourth proportional to 278,820,290,596.02, 418,315,790,180.16 and 142,778,737,574.28 is: 214,211,814,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,820,290,596.02 : 418,315,790,180.16 = 142,778,737,574.28 : x
  2. Step 2: Convert to fraction form
    278,820,290,596.02/418,315,790,180.16 = 142,778,737,574.28/x
  3. Step 3: Cross multiply
    278,820,290,596.02x = 418,315,790,180.16 × 142,778,737,574.28
  4. Step 4: Simplify right side
    278,820,290,596.02x = 59,726,600,429,310,633,312,256
  5. Step 5: Solve for x
    x = 59,726,600,429,310,633,312,256/278,820,290,596.02
  6. Step 6: Final answer
    x = 214,211,814,719.93

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1.5x scale

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.