Home / 12,776,328.78-19,155,045.21-7,726,516.62

Finding the Fourth Proportional to 12,776,328.78, 19,155,045.21 and 7,726,516.62

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Solution

The fourth proportional to 12,776,328.78, 19,155,045.21 and 7,726,516.62 is: 11,584,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,328.78 : 19,155,045.21 = 7,726,516.62 : x
  2. Step 2: Convert to fraction form
    12,776,328.78/19,155,045.21 = 7,726,516.62/x
  3. Step 3: Cross multiply
    12,776,328.78x = 19,155,045.21 × 7,726,516.62
  4. Step 4: Simplify right side
    12,776,328.78x = 148,001,775,171,916.41
  5. Step 5: Solve for x
    x = 148,001,775,171,916.41/12,776,328.78
  6. Step 6: Final answer
    x = 11,584,061.25

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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.