Home / 13,130,040.72-18,119,411.22-7,328,772.12

Finding the Fourth Proportional to 13,130,040.72, 18,119,411.22 and 7,328,772.12

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Solution

The fourth proportional to 13,130,040.72, 18,119,411.22 and 7,328,772.12 is: 10,113,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,040.72 : 18,119,411.22 = 7,328,772.12 : x
  2. Step 2: Convert to fraction form
    13,130,040.72/18,119,411.22 = 7,328,772.12/x
  3. Step 3: Cross multiply
    13,130,040.72x = 18,119,411.22 × 7,328,772.12
  4. Step 4: Simplify right side
    13,130,040.72x = 132,793,035,779,951.19
  5. Step 5: Solve for x
    x = 132,793,035,779,951.19/13,130,040.72
  6. Step 6: Final answer
    x = 10,113,680.42

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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.