Home / 21,085,207.10-31,606,815.45-9,705,808.70

Finding the Fourth Proportional to 21,085,207.10, 31,606,815.45 and 9,705,808.70

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Solution

The fourth proportional to 21,085,207.10, 31,606,815.45 and 9,705,808.70 is: 14,549,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085,207.10 : 31,606,815.45 = 9,705,808.70 : x
  2. Step 2: Convert to fraction form
    21,085,207.10/31,606,815.45 = 9,705,808.70/x
  3. Step 3: Cross multiply
    21,085,207.10x = 31,606,815.45 × 9,705,808.70
  4. Step 4: Simplify right side
    21,085,207.10x = 306,769,704,373,904.38
  5. Step 5: Solve for x
    x = 306,769,704,373,904.38/21,085,207.10
  6. Step 6: Final answer
    x = 14,549,048.67

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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.