Home / 28,679,379.47-39,577,045.35-15,626,745.64

Finding the Fourth Proportional to 28,679,379.47, 39,577,045.35 and 15,626,745.64

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Solution

The fourth proportional to 28,679,379.47, 39,577,045.35 and 15,626,745.64 is: 21,564,637.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679,379.47 : 39,577,045.35 = 15,626,745.64 : x
  2. Step 2: Convert to fraction form
    28,679,379.47/39,577,045.35 = 15,626,745.64/x
  3. Step 3: Cross multiply
    28,679,379.47x = 39,577,045.35 × 15,626,745.64
  4. Step 4: Simplify right side
    28,679,379.47x = 618,460,420,768,252.12
  5. Step 5: Solve for x
    x = 618,460,420,768,252.12/28,679,379.47
  6. Step 6: Final answer
    x = 21,564,637.46

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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.