Home / 103,601,620.55-142,969,359.48-57,190,878.02

Finding the Fourth Proportional to 103,601,620.55, 142,969,359.48 and 57,190,878.02

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Solution

The fourth proportional to 103,601,620.55, 142,969,359.48 and 57,190,878.02 is: 78,922,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,601,620.55 : 142,969,359.48 = 57,190,878.02 : x
  2. Step 2: Convert to fraction form
    103,601,620.55/142,969,359.48 = 57,190,878.02/x
  3. Step 3: Cross multiply
    103,601,620.55x = 142,969,359.48 × 57,190,878.02
  4. Step 4: Simplify right side
    103,601,620.55x = 8,176,543,197,903,363
  5. Step 5: Solve for x
    x = 8,176,543,197,903,363/103,601,620.55
  6. Step 6: Final answer
    x = 78,922,927.60

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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.