Home / 21,643,510-29,868,982.68-11,985,718

Finding the Fourth Proportional to 21,643,510, 29,868,982.68 and 11,985,718

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Solution

The fourth proportional to 21,643,510, 29,868,982.68 and 11,985,718 is: 16,540,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643,510 : 29,868,982.68 = 11,985,718 : x
  2. Step 2: Convert to fraction form
    21,643,510/29,868,982.68 = 11,985,718/x
  3. Step 3: Cross multiply
    21,643,510x = 29,868,982.68 × 11,985,718
  4. Step 4: Simplify right side
    21,643,510x = 358,001,203,349,364.25
  5. Step 5: Solve for x
    x = 358,001,203,349,364.25/21,643,510
  6. Step 6: Final answer
    x = 16,540,810.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.