Home / 12,178,387,809.60-18,269,282,325.60-5,191,143,259.20

Finding the Fourth Proportional to 12,178,387,809.60, 18,269,282,325.60 and 5,191,143,259.20

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Solution

The fourth proportional to 12,178,387,809.60, 18,269,282,325.60 and 5,191,143,259.20 is: 7,787,439,789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,387,809.60 : 18,269,282,325.60 = 5,191,143,259.20 : x
  2. Step 2: Convert to fraction form
    12,178,387,809.60/18,269,282,325.60 = 5,191,143,259.20/x
  3. Step 3: Cross multiply
    12,178,387,809.60x = 18,269,282,325.60 × 5,191,143,259.20
  4. Step 4: Simplify right side
    12,178,387,809.60x = 94,838,461,794,960,130,048
  5. Step 5: Solve for x
    x = 94,838,461,794,960,130,048/12,178,387,809.60
  6. Step 6: Final answer
    x = 7,787,439,789.05

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1.5x scale

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.