Home / 72,419,118.19-100,201,551.39-63,146,011.79

Finding the Fourth Proportional to 72,419,118.19, 100,201,551.39 and 63,146,011.79

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Solution

The fourth proportional to 72,419,118.19, 100,201,551.39 and 63,146,011.79 is: 87,370,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,419,118.19 : 100,201,551.39 = 63,146,011.79 : x
  2. Step 2: Convert to fraction form
    72,419,118.19/100,201,551.39 = 63,146,011.79/x
  3. Step 3: Cross multiply
    72,419,118.19x = 100,201,551.39 × 63,146,011.79
  4. Step 4: Simplify right side
    72,419,118.19x = 6,327,328,345,699,734
  5. Step 5: Solve for x
    x = 6,327,328,345,699,734/72,419,118.19
  6. Step 6: Final answer
    x = 87,370,966.45

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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.