Home / 21,064,789.42-29,070,307.16-11,772,359.21

Finding the Fourth Proportional to 21,064,789.42, 29,070,307.16 and 11,772,359.21

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Solution

The fourth proportional to 21,064,789.42, 29,070,307.16 and 11,772,359.21 is: 16,246,357.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064,789.42 : 29,070,307.16 = 11,772,359.21 : x
  2. Step 2: Convert to fraction form
    21,064,789.42/29,070,307.16 = 11,772,359.21/x
  3. Step 3: Cross multiply
    21,064,789.42x = 29,070,307.16 × 11,772,359.21
  4. Step 4: Simplify right side
    21,064,789.42x = 342,226,098,173,693.19
  5. Step 5: Solve for x
    x = 342,226,098,173,693.19/21,064,789.42
  6. Step 6: Final answer
    x = 16,246,357.44

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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.