Home / 13,100,815,612.76-19,631,226,934.55-7,778,446,947.56

Finding the Fourth Proportional to 13,100,815,612.76, 19,631,226,934.55 and 7,778,446,947.56

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Solution

The fourth proportional to 13,100,815,612.76, 19,631,226,934.55 and 7,778,446,947.56 is: 11,655,797,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100,815,612.76 : 19,631,226,934.55 = 7,778,446,947.56 : x
  2. Step 2: Convert to fraction form
    13,100,815,612.76/19,631,226,934.55 = 7,778,446,947.56/x
  3. Step 3: Cross multiply
    13,100,815,612.76x = 19,631,226,934.55 × 7,778,446,947.56
  4. Step 4: Simplify right side
    13,100,815,612.76x = 152,700,457,225,978,609,664
  5. Step 5: Solve for x
    x = 152,700,457,225,978,609,664/13,100,815,612.76
  6. Step 6: Final answer
    x = 11,655,797,756.39

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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.