Home / 21,003,813.12-31,494,347.28-9,475,808.16

Finding the Fourth Proportional to 21,003,813.12, 31,494,347.28 and 9,475,808.16

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Solution

The fourth proportional to 21,003,813.12, 31,494,347.28 and 9,475,808.16 is: 14,208,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003,813.12 : 31,494,347.28 = 9,475,808.16 : x
  2. Step 2: Convert to fraction form
    21,003,813.12/31,494,347.28 = 9,475,808.16/x
  3. Step 3: Cross multiply
    21,003,813.12x = 31,494,347.28 × 9,475,808.16
  4. Step 4: Simplify right side
    21,003,813.12x = 298,434,392,949,697.81
  5. Step 5: Solve for x
    x = 298,434,392,949,697.81/21,003,813.12
  6. Step 6: Final answer
    x = 14,208,581.62

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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.