Home / 12,776,938.76-19,134,854.78-7,369,194.40

Finding the Fourth Proportional to 12,776,938.76, 19,134,854.78 and 7,369,194.40

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Solution

The fourth proportional to 12,776,938.76, 19,134,854.78 and 7,369,194.40 is: 11,036,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,938.76 : 19,134,854.78 = 7,369,194.40 : x
  2. Step 2: Convert to fraction form
    12,776,938.76/19,134,854.78 = 7,369,194.40/x
  3. Step 3: Cross multiply
    12,776,938.76x = 19,134,854.78 × 7,369,194.40
  4. Step 4: Simplify right side
    12,776,938.76x = 141,008,464,689,589.25
  5. Step 5: Solve for x
    x = 141,008,464,689,589.25/12,776,938.76
  6. Step 6: Final answer
    x = 11,036,169.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.