Home / 28,633,245.81-39,513,547.05-15,580,279.83

Finding the Fourth Proportional to 28,633,245.81, 39,513,547.05 and 15,580,279.83

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Solution

The fourth proportional to 28,633,245.81, 39,513,547.05 and 15,580,279.83 is: 21,500,605.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633,245.81 : 39,513,547.05 = 15,580,279.83 : x
  2. Step 2: Convert to fraction form
    28,633,245.81/39,513,547.05 = 15,580,279.83/x
  3. Step 3: Cross multiply
    28,633,245.81x = 39,513,547.05 × 15,580,279.83
  4. Step 4: Simplify right side
    28,633,245.81x = 615,632,120,114,871
  5. Step 5: Solve for x
    x = 615,632,120,114,871/28,633,245.81
  6. Step 6: Final answer
    x = 21,500,605.42

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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.