Home / 15,712,579.35-21,680,861.18-8,835,733.35

Finding the Fourth Proportional to 15,712,579.35, 21,680,861.18 and 8,835,733.35

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Solution

The fourth proportional to 15,712,579.35, 21,680,861.18 and 8,835,733.35 is: 12,191,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712,579.35 : 21,680,861.18 = 8,835,733.35 : x
  2. Step 2: Convert to fraction form
    15,712,579.35/21,680,861.18 = 8,835,733.35/x
  3. Step 3: Cross multiply
    15,712,579.35x = 21,680,861.18 × 8,835,733.35
  4. Step 4: Simplify right side
    15,712,579.35x = 191,566,308,140,667.69
  5. Step 5: Solve for x
    x = 191,566,308,140,667.69/15,712,579.35
  6. Step 6: Final answer
    x = 12,191,907.13

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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.