Home / 21,923,130.72-30,253,985.12-12,134,254.80

Finding the Fourth Proportional to 21,923,130.72, 30,253,985.12 and 12,134,254.80

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Solution

The fourth proportional to 21,923,130.72, 30,253,985.12 and 12,134,254.80 is: 16,745,307.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923,130.72 : 30,253,985.12 = 12,134,254.80 : x
  2. Step 2: Convert to fraction form
    21,923,130.72/30,253,985.12 = 12,134,254.80/x
  3. Step 3: Cross multiply
    21,923,130.72x = 30,253,985.12 × 12,134,254.80
  4. Step 4: Simplify right side
    21,923,130.72x = 367,109,564,161,488.62
  5. Step 5: Solve for x
    x = 367,109,564,161,488.62/21,923,130.72
  6. Step 6: Final answer
    x = 16,745,307.45

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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.