Home / 20,749,666.04-28,629,496.14-12,163,303.16

Finding the Fourth Proportional to 20,749,666.04, 28,629,496.14 and 12,163,303.16

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Solution

The fourth proportional to 20,749,666.04, 28,629,496.14 and 12,163,303.16 is: 16,782,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749,666.04 : 28,629,496.14 = 12,163,303.16 : x
  2. Step 2: Convert to fraction form
    20,749,666.04/28,629,496.14 = 12,163,303.16/x
  3. Step 3: Cross multiply
    20,749,666.04x = 28,629,496.14 × 12,163,303.16
  4. Step 4: Simplify right side
    20,749,666.04x = 348,229,240,868,869.81
  5. Step 5: Solve for x
    x = 348,229,240,868,869.81/20,749,666.04
  6. Step 6: Final answer
    x = 16,782,402.19

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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.