Home / 74,285,187.80-111,427,781.70-57,279,075.80

Finding the Fourth Proportional to 74,285,187.80, 111,427,781.70 and 57,279,075.80

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Solution

The fourth proportional to 74,285,187.80, 111,427,781.70 and 57,279,075.80 is: 85,918,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,285,187.80 : 111,427,781.70 = 57,279,075.80 : x
  2. Step 2: Convert to fraction form
    74,285,187.80/111,427,781.70 = 57,279,075.80/x
  3. Step 3: Cross multiply
    74,285,187.80x = 111,427,781.70 × 57,279,075.80
  4. Step 4: Simplify right side
    74,285,187.80x = 6,382,480,354,220,153
  5. Step 5: Solve for x
    x = 6,382,480,354,220,153/74,285,187.80
  6. Step 6: Final answer
    x = 85,918,613.70

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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.