Home / 12,642,512.15-17,440,239.98-7,679,636.77

Finding the Fourth Proportional to 12,642,512.15, 17,440,239.98 and 7,679,636.77

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Solution

The fourth proportional to 12,642,512.15, 17,440,239.98 and 7,679,636.77 is: 10,593,994.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642,512.15 : 17,440,239.98 = 7,679,636.77 : x
  2. Step 2: Convert to fraction form
    12,642,512.15/17,440,239.98 = 7,679,636.77/x
  3. Step 3: Cross multiply
    12,642,512.15x = 17,440,239.98 × 7,679,636.77
  4. Step 4: Simplify right side
    12,642,512.15x = 133,934,708,203,630.58
  5. Step 5: Solve for x
    x = 133,934,708,203,630.58/12,642,512.15
  6. Step 6: Final answer
    x = 10,593,994.82

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1.5x scale

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.