Home / 84,248,158.20-126,372,237.30-70,643,268.60

Finding the Fourth Proportional to 84,248,158.20, 126,372,237.30 and 70,643,268.60

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Solution

The fourth proportional to 84,248,158.20, 126,372,237.30 and 70,643,268.60 is: 105,964,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,158.20 : 126,372,237.30 = 70,643,268.60 : x
  2. Step 2: Convert to fraction form
    84,248,158.20/126,372,237.30 = 70,643,268.60/x
  3. Step 3: Cross multiply
    84,248,158.20x = 126,372,237.30 × 70,643,268.60
  4. Step 4: Simplify right side
    84,248,158.20x = 8,927,347,903,166,838
  5. Step 5: Solve for x
    x = 8,927,347,903,166,838/84,248,158.20
  6. Step 6: Final answer
    x = 105,964,902.90

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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.