Home / 777,081,771.70-1,072,375,645.84-424,657,820.72

Finding the Fourth Proportional to 777,081,771.70, 1,072,375,645.84 and 424,657,820.72

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Solution

The fourth proportional to 777,081,771.70, 1,072,375,645.84 and 424,657,820.72 is: 586,029,323.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,081,771.70 : 1,072,375,645.84 = 424,657,820.72 : x
  2. Step 2: Convert to fraction form
    777,081,771.70/1,072,375,645.84 = 424,657,820.72/x
  3. Step 3: Cross multiply
    777,081,771.70x = 1,072,375,645.84 × 424,657,820.72
  4. Step 4: Simplify right side
    777,081,771.70x = 455,392,704,755,616,960
  5. Step 5: Solve for x
    x = 455,392,704,755,616,960/777,081,771.70
  6. Step 6: Final answer
    x = 586,029,323.22

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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.