Home / 709,978,708.50-1,064,917,555.20-218,640,744.24

Finding the Fourth Proportional to 709,978,708.50, 1,064,917,555.20 and 218,640,744.24

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Solution

The fourth proportional to 709,978,708.50, 1,064,917,555.20 and 218,640,744.24 is: 327,945,562.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,978,708.50 : 1,064,917,555.20 = 218,640,744.24 : x
  2. Step 2: Convert to fraction form
    709,978,708.50/1,064,917,555.20 = 218,640,744.24/x
  3. Step 3: Cross multiply
    709,978,708.50x = 1,064,917,555.20 × 218,640,744.24
  4. Step 4: Simplify right side
    709,978,708.50x = 232,834,366,823,169,312
  5. Step 5: Solve for x
    x = 232,834,366,823,169,312/709,978,708.50
  6. Step 6: Final answer
    x = 327,945,562.36

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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.