Home / 18,871,064.55-28,269,603.49-9,779,126.22

Finding the Fourth Proportional to 18,871,064.55, 28,269,603.49 and 9,779,126.22

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Solution

The fourth proportional to 18,871,064.55, 28,269,603.49 and 9,779,126.22 is: 14,649,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,064.55 : 28,269,603.49 = 9,779,126.22 : x
  2. Step 2: Convert to fraction form
    18,871,064.55/28,269,603.49 = 9,779,126.22/x
  3. Step 3: Cross multiply
    18,871,064.55x = 28,269,603.49 × 9,779,126.22
  4. Step 4: Simplify right side
    18,871,064.55x = 276,452,020,718,062.50
  5. Step 5: Solve for x
    x = 276,452,020,718,062.50/18,871,064.55
  6. Step 6: Final answer
    x = 14,649,519.11

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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.