Home / 21,185,206.90-29,235,468-11,892,774.51

Finding the Fourth Proportional to 21,185,206.90, 29,235,468 and 11,892,774.51

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Solution

The fourth proportional to 21,185,206.90, 29,235,468 and 11,892,774.51 is: 16,411,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185,206.90 : 29,235,468 = 11,892,774.51 : x
  2. Step 2: Convert to fraction form
    21,185,206.90/29,235,468 = 11,892,774.51/x
  3. Step 3: Cross multiply
    21,185,206.90x = 29,235,468 × 11,892,774.51
  4. Step 4: Simplify right side
    21,185,206.90x = 347,690,828,618,320.69
  5. Step 5: Solve for x
    x = 347,690,828,618,320.69/21,185,206.90
  6. Step 6: Final answer
    x = 16,411,962.85

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1.5x scale

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.