Home / 13,871,745.90-20,807,618.85-12,528,053.10

Finding the Fourth Proportional to 13,871,745.90, 20,807,618.85 and 12,528,053.10

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Solution

The fourth proportional to 13,871,745.90, 20,807,618.85 and 12,528,053.10 is: 18,792,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871,745.90 : 20,807,618.85 = 12,528,053.10 : x
  2. Step 2: Convert to fraction form
    13,871,745.90/20,807,618.85 = 12,528,053.10/x
  3. Step 3: Cross multiply
    13,871,745.90x = 20,807,618.85 × 12,528,053.10
  4. Step 4: Simplify right side
    13,871,745.90x = 260,678,953,837,360.94
  5. Step 5: Solve for x
    x = 260,678,953,837,360.94/13,871,745.90
  6. Step 6: Final answer
    x = 18,792,079.65

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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.