Home / 57,205,055.51-78,943,874.80-31,099,673.04

Finding the Fourth Proportional to 57,205,055.51, 78,943,874.80 and 31,099,673.04

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Solution

The fourth proportional to 57,205,055.51, 78,943,874.80 and 31,099,673.04 is: 42,918,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,205,055.51 : 78,943,874.80 = 31,099,673.04 : x
  2. Step 2: Convert to fraction form
    57,205,055.51/78,943,874.80 = 31,099,673.04/x
  3. Step 3: Cross multiply
    57,205,055.51x = 78,943,874.80 × 31,099,673.04
  4. Step 4: Simplify right side
    57,205,055.51x = 2,455,128,694,790,695
  5. Step 5: Solve for x
    x = 2,455,128,694,790,695/57,205,055.51
  6. Step 6: Final answer
    x = 42,918,037.10

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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.