Home / 872,888,613.94-1,309,578,564.75-381,645,023.86

Finding the Fourth Proportional to 872,888,613.94, 1,309,578,564.75 and 381,645,023.86

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Solution

The fourth proportional to 872,888,613.94, 1,309,578,564.75 and 381,645,023.86 is: 572,574,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,888,613.94 : 1,309,578,564.75 = 381,645,023.86 : x
  2. Step 2: Convert to fraction form
    872,888,613.94/1,309,578,564.75 = 381,645,023.86/x
  3. Step 3: Cross multiply
    872,888,613.94x = 1,309,578,564.75 × 381,645,023.86
  4. Step 4: Simplify right side
    872,888,613.94x = 499,794,142,590,558,336
  5. Step 5: Solve for x
    x = 499,794,142,590,558,336/872,888,613.94
  6. Step 6: Final answer
    x = 572,574,936.38

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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.