Home / 72,171,875.80-108,257,813.70-49,213,624.60

Finding the Fourth Proportional to 72,171,875.80, 108,257,813.70 and 49,213,624.60

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Solution

The fourth proportional to 72,171,875.80, 108,257,813.70 and 49,213,624.60 is: 73,820,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,875.80 : 108,257,813.70 = 49,213,624.60 : x
  2. Step 2: Convert to fraction form
    72,171,875.80/108,257,813.70 = 49,213,624.60/x
  3. Step 3: Cross multiply
    72,171,875.80x = 108,257,813.70 × 49,213,624.60
  4. Step 4: Simplify right side
    72,171,875.80x = 5,327,759,403,448,537
  5. Step 5: Solve for x
    x = 5,327,759,403,448,537/72,171,875.80
  6. Step 6: Final answer
    x = 73,820,436.90

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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.