Home / 28,679,379.28-39,577,045.10-15,626,745.45

Finding the Fourth Proportional to 28,679,379.28, 39,577,045.10 and 15,626,745.45

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Solution

The fourth proportional to 28,679,379.28, 39,577,045.10 and 15,626,745.45 is: 21,564,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679,379.28 : 39,577,045.10 = 15,626,745.45 : x
  2. Step 2: Convert to fraction form
    28,679,379.28/39,577,045.10 = 15,626,745.45/x
  3. Step 3: Cross multiply
    28,679,379.28x = 39,577,045.10 × 15,626,745.45
  4. Step 4: Simplify right side
    28,679,379.28x = 618,460,409,362,736
  5. Step 5: Solve for x
    x = 618,460,409,362,736/28,679,379.28
  6. Step 6: Final answer
    x = 21,564,637.20

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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.