Home / 28,081,736,512.62-38,755,248,038.55-15,396,923,826.78

Finding the Fourth Proportional to 28,081,736,512.62, 38,755,248,038.55 and 15,396,923,826.78

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Solution

The fourth proportional to 28,081,736,512.62, 38,755,248,038.55 and 15,396,923,826.78 is: 21,249,099,095.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,736,512.62 : 38,755,248,038.55 = 15,396,923,826.78 : x
  2. Step 2: Convert to fraction form
    28,081,736,512.62/38,755,248,038.55 = 15,396,923,826.78/x
  3. Step 3: Cross multiply
    28,081,736,512.62x = 38,755,248,038.55 × 15,396,923,826.78
  4. Step 4: Simplify right side
    28,081,736,512.62x = 596,711,601,937,519,476,736
  5. Step 5: Solve for x
    x = 596,711,601,937,519,476,736/28,081,736,512.62
  6. Step 6: Final answer
    x = 21,249,099,095.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.