Home / 82,483,903.20-123,725,854.80-81,208,444.80

Finding the Fourth Proportional to 82,483,903.20, 123,725,854.80 and 81,208,444.80

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Solution

The fourth proportional to 82,483,903.20, 123,725,854.80 and 81,208,444.80 is: 121,812,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,483,903.20 : 123,725,854.80 = 81,208,444.80 : x
  2. Step 2: Convert to fraction form
    82,483,903.20/123,725,854.80 = 81,208,444.80/x
  3. Step 3: Cross multiply
    82,483,903.20x = 123,725,854.80 × 81,208,444.80
  4. Step 4: Simplify right side
    82,483,903.20x = 10,047,584,249,858,614
  5. Step 5: Solve for x
    x = 10,047,584,249,858,614/82,483,903.20
  6. Step 6: Final answer
    x = 121,812,667.20

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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.