Home / 656,174,104.31-905,093,594.02-420,852,029.51

Finding the Fourth Proportional to 656,174,104.31, 905,093,594.02 and 420,852,029.51

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Solution

The fourth proportional to 656,174,104.31, 905,093,594.02 and 420,852,029.51 is: 580,502,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,174,104.31 : 905,093,594.02 = 420,852,029.51 : x
  2. Step 2: Convert to fraction form
    656,174,104.31/905,093,594.02 = 420,852,029.51/x
  3. Step 3: Cross multiply
    656,174,104.31x = 905,093,594.02 × 420,852,029.51
  4. Step 4: Simplify right side
    656,174,104.31x = 380,910,475,942,605,760
  5. Step 5: Solve for x
    x = 380,910,475,942,605,760/656,174,104.31
  6. Step 6: Final answer
    x = 580,502,146.37

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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.