Home / 21,390,740.52-29,519,270.48-12,223,361.40

Finding the Fourth Proportional to 21,390,740.52, 29,519,270.48 and 12,223,361.40

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Solution

The fourth proportional to 21,390,740.52, 29,519,270.48 and 12,223,361.40 is: 16,868,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390,740.52 : 29,519,270.48 = 12,223,361.40 : x
  2. Step 2: Convert to fraction form
    21,390,740.52/29,519,270.48 = 12,223,361.40/x
  3. Step 3: Cross multiply
    21,390,740.52x = 29,519,270.48 × 12,223,361.40
  4. Step 4: Simplify right side
    21,390,740.52x = 360,824,711,341,391.50
  5. Step 5: Solve for x
    x = 360,824,711,341,391.50/21,390,740.52
  6. Step 6: Final answer
    x = 16,868,266.48

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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.