Home / 57,128,209.03-78,890,734.80-39,772,013.02

Finding the Fourth Proportional to 57,128,209.03, 78,890,734.80 and 39,772,013.02

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Solution

The fourth proportional to 57,128,209.03, 78,890,734.80 and 39,772,013.02 is: 54,922,837.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,128,209.03 : 78,890,734.80 = 39,772,013.02 : x
  2. Step 2: Convert to fraction form
    57,128,209.03/78,890,734.80 = 39,772,013.02/x
  3. Step 3: Cross multiply
    57,128,209.03x = 78,890,734.80 × 39,772,013.02
  4. Step 4: Simplify right side
    57,128,209.03x = 3,137,643,331,622,967
  5. Step 5: Solve for x
    x = 3,137,643,331,622,967/57,128,209.03
  6. Step 6: Final answer
    x = 54,922,837.33

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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.