Home / 74,922,828,118.37-112,390,849,400.82-21,140,435,383.32

Finding the Fourth Proportional to 74,922,828,118.37, 112,390,849,400.82 and 21,140,435,383.32

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Solution

The fourth proportional to 74,922,828,118.37, 112,390,849,400.82 and 21,140,435,383.32 is: 31,712,517,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,922,828,118.37 : 112,390,849,400.82 = 21,140,435,383.32 : x
  2. Step 2: Convert to fraction form
    74,922,828,118.37/112,390,849,400.82 = 21,140,435,383.32/x
  3. Step 3: Cross multiply
    74,922,828,118.37x = 112,390,849,400.82 × 21,140,435,383.32
  4. Step 4: Simplify right side
    74,922,828,118.37x = 2,375,991,489,434,147,618,816
  5. Step 5: Solve for x
    x = 2,375,991,489,434,147,618,816/74,922,828,118.37
  6. Step 6: Final answer
    x = 31,712,517,387.63

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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.