Home / 72,555,357.36-100,133,465.44-54,188,756.40

Finding the Fourth Proportional to 72,555,357.36, 100,133,465.44 and 54,188,756.40

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Solution

The fourth proportional to 72,555,357.36, 100,133,465.44 and 54,188,756.40 is: 74,785,765.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555,357.36 : 100,133,465.44 = 54,188,756.40 : x
  2. Step 2: Convert to fraction form
    72,555,357.36/100,133,465.44 = 54,188,756.40/x
  3. Step 3: Cross multiply
    72,555,357.36x = 100,133,465.44 × 54,188,756.40
  4. Step 4: Simplify right side
    72,555,357.36x = 5,426,107,966,215,979
  5. Step 5: Solve for x
    x = 5,426,107,966,215,979/72,555,357.36
  6. Step 6: Final answer
    x = 74,785,765.84

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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.