Home / 82,843,041.36-124,264,558.44-78,700,569.60

Finding the Fourth Proportional to 82,843,041.36, 124,264,558.44 and 78,700,569.60

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Solution

The fourth proportional to 82,843,041.36, 124,264,558.44 and 78,700,569.60 is: 118,050,850.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,843,041.36 : 124,264,558.44 = 78,700,569.60 : x
  2. Step 2: Convert to fraction form
    82,843,041.36/124,264,558.44 = 78,700,569.60/x
  3. Step 3: Cross multiply
    82,843,041.36x = 124,264,558.44 × 78,700,569.60
  4. Step 4: Simplify right side
    82,843,041.36x = 9,779,691,530,320,486
  5. Step 5: Solve for x
    x = 9,779,691,530,320,486/82,843,041.36
  6. Step 6: Final answer
    x = 118,050,850.98

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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.