Home / 12,141,457.18-16,756,919.55-7,729,773.45

Finding the Fourth Proportional to 12,141,457.18, 16,756,919.55 and 7,729,773.45

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Solution

The fourth proportional to 12,141,457.18, 16,756,919.55 and 7,729,773.45 is: 10,668,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141,457.18 : 16,756,919.55 = 7,729,773.45 : x
  2. Step 2: Convert to fraction form
    12,141,457.18/16,756,919.55 = 7,729,773.45/x
  3. Step 3: Cross multiply
    12,141,457.18x = 16,756,919.55 × 7,729,773.45
  4. Step 4: Simplify right side
    12,141,457.18x = 129,527,191,872,795.19
  5. Step 5: Solve for x
    x = 129,527,191,872,795.19/12,141,457.18
  6. Step 6: Final answer
    x = 10,668,175.16

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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.