Home / 875,105,908.62-1,207,512,006.75-503,756,185.74

Finding the Fourth Proportional to 875,105,908.62, 1,207,512,006.75 and 503,756,185.74

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Solution

The fourth proportional to 875,105,908.62, 1,207,512,006.75 and 503,756,185.74 is: 695,106,314.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,105,908.62 : 1,207,512,006.75 = 503,756,185.74 : x
  2. Step 2: Convert to fraction form
    875,105,908.62/1,207,512,006.75 = 503,756,185.74/x
  3. Step 3: Cross multiply
    875,105,908.62x = 1,207,512,006.75 × 503,756,185.74
  4. Step 4: Simplify right side
    875,105,908.62x = 608,291,642,755,633,152
  5. Step 5: Solve for x
    x = 608,291,642,755,633,152/875,105,908.62
  6. Step 6: Final answer
    x = 695,106,314.29

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Double scale
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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.