Home / 15,502,351,947.76-23,219,509,460.64-12,815,961,640.12

Finding the Fourth Proportional to 15,502,351,947.76, 23,219,509,460.64 and 12,815,961,640.12

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Solution

The fourth proportional to 15,502,351,947.76, 23,219,509,460.64 and 12,815,961,640.12 is: 19,195,819,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502,351,947.76 : 23,219,509,460.64 = 12,815,961,640.12 : x
  2. Step 2: Convert to fraction form
    15,502,351,947.76/23,219,509,460.64 = 12,815,961,640.12/x
  3. Step 3: Cross multiply
    15,502,351,947.76x = 23,219,509,460.64 × 12,815,961,640.12
  4. Step 4: Simplify right side
    15,502,351,947.76x = 297,580,342,549,965,701,120
  5. Step 5: Solve for x
    x = 297,580,342,549,965,701,120/15,502,351,947.76
  6. Step 6: Final answer
    x = 19,195,819,031.38

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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.