Home / 5,419,699.80-7,478,647.02-3,128,598.60

Finding the Fourth Proportional to 5,419,699.80, 7,478,647.02 and 3,128,598.60

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Solution

The fourth proportional to 5,419,699.80, 7,478,647.02 and 3,128,598.60 is: 4,317,155.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419,699.80 : 7,478,647.02 = 3,128,598.60 : x
  2. Step 2: Convert to fraction form
    5,419,699.80/7,478,647.02 = 3,128,598.60/x
  3. Step 3: Cross multiply
    5,419,699.80x = 7,478,647.02 × 3,128,598.60
  4. Step 4: Simplify right side
    5,419,699.80x = 23,397,684,596,666.17
  5. Step 5: Solve for x
    x = 23,397,684,596,666.17/5,419,699.80
  6. Step 6: Final answer
    x = 4,317,155.09

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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.