Home / 21,643,506-29,868,977.16-11,985,714

Finding the Fourth Proportional to 21,643,506, 29,868,977.16 and 11,985,714

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Solution

The fourth proportional to 21,643,506, 29,868,977.16 and 11,985,714 is: 16,540,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643,506 : 29,868,977.16 = 11,985,714 : x
  2. Step 2: Convert to fraction form
    21,643,506/29,868,977.16 = 11,985,714/x
  3. Step 3: Cross multiply
    21,643,506x = 29,868,977.16 × 11,985,714
  4. Step 4: Simplify right side
    21,643,506x = 358,001,017,712,292.25
  5. Step 5: Solve for x
    x = 358,001,017,712,292.25/21,643,506
  6. Step 6: Final answer
    x = 16,540,805.25

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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.