Home / 13,603,681.76-20,398,436.75-5,077,006.16

Finding the Fourth Proportional to 13,603,681.76, 20,398,436.75 and 5,077,006.16

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Solution

The fourth proportional to 13,603,681.76, 20,398,436.75 and 5,077,006.16 is: 7,612,864.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603,681.76 : 20,398,436.75 = 5,077,006.16 : x
  2. Step 2: Convert to fraction form
    13,603,681.76/20,398,436.75 = 5,077,006.16/x
  3. Step 3: Cross multiply
    13,603,681.76x = 20,398,436.75 × 5,077,006.16
  4. Step 4: Simplify right side
    13,603,681.76x = 103,562,988,944,820.72
  5. Step 5: Solve for x
    x = 103,562,988,944,820.72/13,603,681.76
  6. Step 6: Final answer
    x = 7,612,864.72

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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.