Home / 28,547,909.84-39,396,155.40-15,495,171.42

Finding the Fourth Proportional to 28,547,909.84, 39,396,155.40 and 15,495,171.42

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Solution

The fourth proportional to 28,547,909.84, 39,396,155.40 and 15,495,171.42 is: 21,383,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547,909.84 : 39,396,155.40 = 15,495,171.42 : x
  2. Step 2: Convert to fraction form
    28,547,909.84/39,396,155.40 = 15,495,171.42/x
  3. Step 3: Cross multiply
    28,547,909.84x = 39,396,155.40 × 15,495,171.42
  4. Step 4: Simplify right side
    28,547,909.84x = 610,450,181,014,977.88
  5. Step 5: Solve for x
    x = 610,450,181,014,977.88/28,547,909.84
  6. Step 6: Final answer
    x = 21,383,358.17

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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.