Home / 21,001,226.40-28,981,686.60-11,343,434.40

Finding the Fourth Proportional to 21,001,226.40, 28,981,686.60 and 11,343,434.40

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Solution

The fourth proportional to 21,001,226.40, 28,981,686.60 and 11,343,434.40 is: 15,653,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001,226.40 : 28,981,686.60 = 11,343,434.40 : x
  2. Step 2: Convert to fraction form
    21,001,226.40/28,981,686.60 = 11,343,434.40/x
  3. Step 3: Cross multiply
    21,001,226.40x = 28,981,686.60 × 11,343,434.40
  4. Step 4: Simplify right side
    21,001,226.40x = 328,751,860,748,459.06
  5. Step 5: Solve for x
    x = 328,751,860,748,459.06/21,001,226.40
  6. Step 6: Final answer
    x = 15,653,936.32

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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.