Home / 12,960,783.54-17,885,534.13-7,159,440.42

Finding the Fourth Proportional to 12,960,783.54, 17,885,534.13 and 7,159,440.42

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Solution

The fourth proportional to 12,960,783.54, 17,885,534.13 and 7,159,440.42 is: 9,879,836.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,783.54 : 17,885,534.13 = 7,159,440.42 : x
  2. Step 2: Convert to fraction form
    12,960,783.54/17,885,534.13 = 7,159,440.42/x
  3. Step 3: Cross multiply
    12,960,783.54x = 17,885,534.13 × 7,159,440.42
  4. Step 4: Simplify right side
    12,960,783.54x = 128,050,415,983,611.53
  5. Step 5: Solve for x
    x = 128,050,415,983,611.53/12,960,783.54
  6. Step 6: Final answer
    x = 9,879,836.01

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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.