Home / 20,390,461.98-28,139,635.35-11,223,957.66

Finding the Fourth Proportional to 20,390,461.98, 28,139,635.35 and 11,223,957.66

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Solution

The fourth proportional to 20,390,461.98, 28,139,635.35 and 11,223,957.66 is: 15,489,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390,461.98 : 28,139,635.35 = 11,223,957.66 : x
  2. Step 2: Convert to fraction form
    20,390,461.98/28,139,635.35 = 11,223,957.66/x
  3. Step 3: Cross multiply
    20,390,461.98x = 28,139,635.35 × 11,223,957.66
  4. Step 4: Simplify right side
    20,390,461.98x = 315,838,075,736,239.31
  5. Step 5: Solve for x
    x = 315,838,075,736,239.31/20,390,461.98
  6. Step 6: Final answer
    x = 15,489,500.73

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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.