Home / 21,033,577.92-31,563,430.56-13,465,974.72

Finding the Fourth Proportional to 21,033,577.92, 31,563,430.56 and 13,465,974.72

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Solution

The fourth proportional to 21,033,577.92, 31,563,430.56 and 13,465,974.72 is: 20,207,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033,577.92 : 31,563,430.56 = 13,465,974.72 : x
  2. Step 2: Convert to fraction form
    21,033,577.92/31,563,430.56 = 13,465,974.72/x
  3. Step 3: Cross multiply
    21,033,577.92x = 31,563,430.56 × 13,465,974.72
  4. Step 4: Simplify right side
    21,033,577.92x = 425,032,357,997,435.44
  5. Step 5: Solve for x
    x = 425,032,357,997,435.44/21,033,577.92
  6. Step 6: Final answer
    x = 20,207,325.62

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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.