Home / 21,913,137.32-30,239,023-11,989,805.24

Finding the Fourth Proportional to 21,913,137.32, 30,239,023 and 11,989,805.24

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Solution

The fourth proportional to 21,913,137.32, 30,239,023 and 11,989,805.24 is: 16,545,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913,137.32 : 30,239,023 = 11,989,805.24 : x
  2. Step 2: Convert to fraction form
    21,913,137.32/30,239,023 = 11,989,805.24/x
  3. Step 3: Cross multiply
    21,913,137.32x = 30,239,023 × 11,989,805.24
  4. Step 4: Simplify right side
    21,913,137.32x = 362,559,996,417,880.50
  5. Step 5: Solve for x
    x = 362,559,996,417,880.50/21,913,137.32
  6. Step 6: Final answer
    x = 16,545,325.81

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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.