Home / 72,497,834.37-100,047,005.87-39,458,320.41

Finding the Fourth Proportional to 72,497,834.37, 100,047,005.87 and 39,458,320.41

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Solution

The fourth proportional to 72,497,834.37, 100,047,005.87 and 39,458,320.41 is: 54,452,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,497,834.37 : 100,047,005.87 = 39,458,320.41 : x
  2. Step 2: Convert to fraction form
    72,497,834.37/100,047,005.87 = 39,458,320.41/x
  3. Step 3: Cross multiply
    72,497,834.37x = 100,047,005.87 × 39,458,320.41
  4. Step 4: Simplify right side
    72,497,834.37x = 3,947,686,813,482,318.50
  5. Step 5: Solve for x
    x = 3,947,686,813,482,318.50/72,497,834.37
  6. Step 6: Final answer
    x = 54,452,479.14

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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.