Home / 12,178,387,716.60-18,269,282,186.10-5,191,143,166.20

Finding the Fourth Proportional to 12,178,387,716.60, 18,269,282,186.10 and 5,191,143,166.20

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Solution

The fourth proportional to 12,178,387,716.60, 18,269,282,186.10 and 5,191,143,166.20 is: 7,787,439,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,387,716.60 : 18,269,282,186.10 = 5,191,143,166.20 : x
  2. Step 2: Convert to fraction form
    12,178,387,716.60/18,269,282,186.10 = 5,191,143,166.20/x
  3. Step 3: Cross multiply
    12,178,387,716.60x = 18,269,282,186.10 × 5,191,143,166.20
  4. Step 4: Simplify right side
    12,178,387,716.60x = 94,838,459,371,752,407,040
  5. Step 5: Solve for x
    x = 94,838,459,371,752,407,040/12,178,387,716.60
  6. Step 6: Final answer
    x = 7,787,439,649.54

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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.