Home / 20,803,159.72-28,706,801.52-11,634,031

Finding the Fourth Proportional to 20,803,159.72, 28,706,801.52 and 11,634,031

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Solution

The fourth proportional to 20,803,159.72, 28,706,801.52 and 11,634,031 is: 16,054,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,159.72 : 28,706,801.52 = 11,634,031 : x
  2. Step 2: Convert to fraction form
    20,803,159.72/28,706,801.52 = 11,634,031/x
  3. Step 3: Cross multiply
    20,803,159.72x = 28,706,801.52 × 11,634,031
  4. Step 4: Simplify right side
    20,803,159.72x = 333,975,818,794,527.12
  5. Step 5: Solve for x
    x = 333,975,818,794,527.12/20,803,159.72
  6. Step 6: Final answer
    x = 16,054,090.98

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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.