Home / 28,608,124.80-42,879,009.60-11,557,603.20

Finding the Fourth Proportional to 28,608,124.80, 42,879,009.60 and 11,557,603.20

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Solution

The fourth proportional to 28,608,124.80, 42,879,009.60 and 11,557,603.20 is: 17,323,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,124.80 : 42,879,009.60 = 11,557,603.20 : x
  2. Step 2: Convert to fraction form
    28,608,124.80/42,879,009.60 = 11,557,603.20/x
  3. Step 3: Cross multiply
    28,608,124.80x = 42,879,009.60 × 11,557,603.20
  4. Step 4: Simplify right side
    28,608,124.80x = 495,578,578,565,790.69
  5. Step 5: Solve for x
    x = 495,578,578,565,790.69/28,608,124.80
  6. Step 6: Final answer
    x = 17,323,001.14

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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.