Home / 14,121,518.52-19,486,136.12-7,925,143.96

Finding the Fourth Proportional to 14,121,518.52, 19,486,136.12 and 7,925,143.96

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Solution

The fourth proportional to 14,121,518.52, 19,486,136.12 and 7,925,143.96 is: 10,935,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121,518.52 : 19,486,136.12 = 7,925,143.96 : x
  2. Step 2: Convert to fraction form
    14,121,518.52/19,486,136.12 = 7,925,143.96/x
  3. Step 3: Cross multiply
    14,121,518.52x = 19,486,136.12 × 7,925,143.96
  4. Step 4: Simplify right side
    14,121,518.52x = 154,430,433,975,155.84
  5. Step 5: Solve for x
    x = 154,430,433,975,155.84/14,121,518.52
  6. Step 6: Final answer
    x = 10,935,823.49

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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.