Home / 82,780,871.80-124,184,429.70-28,198,600.60

Finding the Fourth Proportional to 82,780,871.80, 124,184,429.70 and 28,198,600.60

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Solution

The fourth proportional to 82,780,871.80, 124,184,429.70 and 28,198,600.60 is: 42,302,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,780,871.80 : 124,184,429.70 = 28,198,600.60 : x
  2. Step 2: Convert to fraction form
    82,780,871.80/124,184,429.70 = 28,198,600.60/x
  3. Step 3: Cross multiply
    82,780,871.80x = 124,184,429.70 × 28,198,600.60
  4. Step 4: Simplify right side
    82,780,871.80x = 3,501,827,133,849,078
  5. Step 5: Solve for x
    x = 3,501,827,133,849,078/82,780,871.80
  6. Step 6: Final answer
    x = 42,302,370.80

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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.