Home / 12,690,018,749,059-17,512,285,177,726-7,209,421,291,923

Finding the Fourth Proportional to 12,690,018,749,059, 17,512,285,177,726 and 7,209,421,291,923

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Solution

The fourth proportional to 12,690,018,749,059, 17,512,285,177,726 and 7,209,421,291,923 is: 9,949,035,074,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,018,749,059 : 17,512,285,177,726 = 7,209,421,291,923 : x
  2. Step 2: Convert to fraction form
    12,690,018,749,059/17,512,285,177,726 = 7,209,421,291,923/x
  3. Step 3: Cross multiply
    12,690,018,749,059x = 17,512,285,177,726 × 7,209,421,291,923
  4. Step 4: Simplify right side
    12,690,018,749,059x = 126,253,441,630,525,381,373,067,264
  5. Step 5: Solve for x
    x = 126,253,441,630,525,381,373,067,264/12,690,018,749,059
  6. Step 6: Final answer
    x = 9,949,035,074,505.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.