Home / 820,119,171,207.90-1,230,178,756,811.90-820,119,171,207.90

Finding the Fourth Proportional to 820,119,171,207.90, 1,230,178,756,811.90 and 820,119,171,207.90

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Solution

The fourth proportional to 820,119,171,207.90, 1,230,178,756,811.90 and 820,119,171,207.90 is: 1,230,178,756,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,119,171,207.90 : 1,230,178,756,811.90 = 820,119,171,207.90 : x
  2. Step 2: Convert to fraction form
    820,119,171,207.90/1,230,178,756,811.90 = 820,119,171,207.90/x
  3. Step 3: Cross multiply
    820,119,171,207.90x = 1,230,178,756,811.90 × 820,119,171,207.90
  4. Step 4: Simplify right side
    820,119,171,207.90x = 1,008,893,182,474,140,180,807,680
  5. Step 5: Solve for x
    x = 1,008,893,182,474,140,180,807,680/820,119,171,207.90
  6. Step 6: Final answer
    x = 1,230,178,756,811.90

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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.