Home / 850,917,801.15-1,276,508,670.17-359,633,139.21

Finding the Fourth Proportional to 850,917,801.15, 1,276,508,670.17 and 359,633,139.21

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Solution

The fourth proportional to 850,917,801.15, 1,276,508,670.17 and 359,633,139.21 is: 539,505,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,917,801.15 : 1,276,508,670.17 = 359,633,139.21 : x
  2. Step 2: Convert to fraction form
    850,917,801.15/1,276,508,670.17 = 359,633,139.21/x
  3. Step 3: Cross multiply
    850,917,801.15x = 1,276,508,670.17 × 359,633,139.21
  4. Step 4: Simplify right side
    850,917,801.15x = 459,074,820,280,221,376
  5. Step 5: Solve for x
    x = 459,074,820,280,221,376/850,917,801.15
  6. Step 6: Final answer
    x = 539,505,484.15

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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.