Home / 72,497,641.21-100,047,562.70-39,458,101.86

Finding the Fourth Proportional to 72,497,641.21, 100,047,562.70 and 39,458,101.86

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Solution

The fourth proportional to 72,497,641.21, 100,047,562.70 and 39,458,101.86 is: 54,452,625.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,497,641.21 : 100,047,562.70 = 39,458,101.86 : x
  2. Step 2: Convert to fraction form
    72,497,641.21/100,047,562.70 = 39,458,101.86/x
  3. Step 3: Cross multiply
    72,497,641.21x = 100,047,562.70 × 39,458,101.86
  4. Step 4: Simplify right side
    72,497,641.21x = 3,947,686,919,664,046
  5. Step 5: Solve for x
    x = 3,947,686,919,664,046/72,497,641.21
  6. Step 6: Final answer
    x = 54,452,625.68

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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.