Home / 21,455,543.07-29,608,426.80-15,973,433.91

Finding the Fourth Proportional to 21,455,543.07, 29,608,426.80 and 15,973,433.91

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Solution

The fourth proportional to 21,455,543.07, 29,608,426.80 and 15,973,433.91 is: 22,043,173.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455,543.07 : 29,608,426.80 = 15,973,433.91 : x
  2. Step 2: Convert to fraction form
    21,455,543.07/29,608,426.80 = 15,973,433.91/x
  3. Step 3: Cross multiply
    21,455,543.07x = 29,608,426.80 × 15,973,433.91
  4. Step 4: Simplify right side
    21,455,543.07x = 472,948,248,668,872.81
  5. Step 5: Solve for x
    x = 472,948,248,668,872.81/21,455,543.07
  6. Step 6: Final answer
    x = 22,043,173.05

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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.