Home / 90,982,374.21-125,541,646.34-51,819,158.30

Finding the Fourth Proportional to 90,982,374.21, 125,541,646.34 and 51,819,158.30

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Solution

The fourth proportional to 90,982,374.21, 125,541,646.34 and 51,819,158.30 is: 71,502,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,982,374.21 : 125,541,646.34 = 51,819,158.30 : x
  2. Step 2: Convert to fraction form
    90,982,374.21/125,541,646.34 = 51,819,158.30/x
  3. Step 3: Cross multiply
    90,982,374.21x = 125,541,646.34 × 51,819,158.30
  4. Step 4: Simplify right side
    90,982,374.21x = 6,505,462,444,048,271
  5. Step 5: Solve for x
    x = 6,505,462,444,048,271/90,982,374.21
  6. Step 6: Final answer
    x = 71,502,447.60

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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.