Home / 78,149,018.92-117,241,384.02-27,030,994.60

Finding the Fourth Proportional to 78,149,018.92, 117,241,384.02 and 27,030,994.60

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Solution

The fourth proportional to 78,149,018.92, 117,241,384.02 and 27,030,994.60 is: 40,552,667.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,149,018.92 : 117,241,384.02 = 27,030,994.60 : x
  2. Step 2: Convert to fraction form
    78,149,018.92/117,241,384.02 = 27,030,994.60/x
  3. Step 3: Cross multiply
    78,149,018.92x = 117,241,384.02 × 27,030,994.60
  4. Step 4: Simplify right side
    78,149,018.92x = 3,169,151,218,341,146.50
  5. Step 5: Solve for x
    x = 3,169,151,218,341,146.50/78,149,018.92
  6. Step 6: Final answer
    x = 40,552,667.99

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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.