Home / 66,580,508.40-99,873,527.40-21,141,020.40

Finding the Fourth Proportional to 66,580,508.40, 99,873,527.40 and 21,141,020.40

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Solution

The fourth proportional to 66,580,508.40, 99,873,527.40 and 21,141,020.40 is: 31,712,408.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580,508.40 : 99,873,527.40 = 21,141,020.40 : x
  2. Step 2: Convert to fraction form
    66,580,508.40/99,873,527.40 = 21,141,020.40/x
  3. Step 3: Cross multiply
    66,580,508.40x = 99,873,527.40 × 21,141,020.40
  4. Step 4: Simplify right side
    66,580,508.40x = 2,111,428,280,183,359
  5. Step 5: Solve for x
    x = 2,111,428,280,183,359/66,580,508.40
  6. Step 6: Final answer
    x = 31,712,408.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.