Home / 20,729,499.05-28,606,807.59-11,437,068.53

Finding the Fourth Proportional to 20,729,499.05, 28,606,807.59 and 11,437,068.53

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Solution

The fourth proportional to 20,729,499.05, 28,606,807.59 and 11,437,068.53 is: 15,783,209.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729,499.05 : 28,606,807.59 = 11,437,068.53 : x
  2. Step 2: Convert to fraction form
    20,729,499.05/28,606,807.59 = 11,437,068.53/x
  3. Step 3: Cross multiply
    20,729,499.05x = 28,606,807.59 × 11,437,068.53
  4. Step 4: Simplify right side
    20,729,499.05x = 327,178,018,831,354.12
  5. Step 5: Solve for x
    x = 327,178,018,831,354.12/20,729,499.05
  6. Step 6: Final answer
    x = 15,783,209.14

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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.