Home / 807,791,415.40-1,211,596,279.89-217,625,272.51

Finding the Fourth Proportional to 807,791,415.40, 1,211,596,279.89 and 217,625,272.51

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Solution

The fourth proportional to 807,791,415.40, 1,211,596,279.89 and 217,625,272.51 is: 326,413,434.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,791,415.40 : 1,211,596,279.89 = 217,625,272.51 : x
  2. Step 2: Convert to fraction form
    807,791,415.40/1,211,596,279.89 = 217,625,272.51/x
  3. Step 3: Cross multiply
    807,791,415.40x = 1,211,596,279.89 × 217,625,272.51
  4. Step 4: Simplify right side
    807,791,415.40x = 263,673,970,577,105,504
  5. Step 5: Solve for x
    x = 263,673,970,577,105,504/807,791,415.40
  6. Step 6: Final answer
    x = 326,413,434.89

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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.