Home / 12,811,710.60-17,679,632.94-7,657,913.88

Finding the Fourth Proportional to 12,811,710.60, 17,679,632.94 and 7,657,913.88

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Solution

The fourth proportional to 12,811,710.60, 17,679,632.94 and 7,657,913.88 is: 10,567,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811,710.60 : 17,679,632.94 = 7,657,913.88 : x
  2. Step 2: Convert to fraction form
    12,811,710.60/17,679,632.94 = 7,657,913.88/x
  3. Step 3: Cross multiply
    12,811,710.60x = 17,679,632.94 × 7,657,913.88
  4. Step 4: Simplify right side
    12,811,710.60x = 135,389,106,484,531.22
  5. Step 5: Solve for x
    x = 135,389,106,484,531.22/12,811,710.60
  6. Step 6: Final answer
    x = 10,567,605.74

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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.