Home / 21,643,503-29,868,973.02-11,985,711

Finding the Fourth Proportional to 21,643,503, 29,868,973.02 and 11,985,711

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Solution

The fourth proportional to 21,643,503, 29,868,973.02 and 11,985,711 is: 16,540,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643,503 : 29,868,973.02 = 11,985,711 : x
  2. Step 2: Convert to fraction form
    21,643,503/29,868,973.02 = 11,985,711/x
  3. Step 3: Cross multiply
    21,643,503x = 29,868,973.02 × 11,985,711
  4. Step 4: Simplify right side
    21,643,503x = 358,000,878,484,517.19
  5. Step 5: Solve for x
    x = 358,000,878,484,517.19/21,643,503
  6. Step 6: Final answer
    x = 16,540,801.11

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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.