Home / 21,263,386.40-31,899,745.20-6,884,007.20

Finding the Fourth Proportional to 21,263,386.40, 31,899,745.20 and 6,884,007.20

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Solution

The fourth proportional to 21,263,386.40, 31,899,745.20 and 6,884,007.20 is: 10,327,521.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263,386.40 : 31,899,745.20 = 6,884,007.20 : x
  2. Step 2: Convert to fraction form
    21,263,386.40/31,899,745.20 = 6,884,007.20/x
  3. Step 3: Cross multiply
    21,263,386.40x = 31,899,745.20 × 6,884,007.20
  4. Step 4: Simplify right side
    21,263,386.40x = 219,598,075,634,965.44
  5. Step 5: Solve for x
    x = 219,598,075,634,965.44/21,263,386.40
  6. Step 6: Final answer
    x = 10,327,521.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.