Home / 61,666,019.40-84,962,071.62-40,720,857.96

Finding the Fourth Proportional to 61,666,019.40, 84,962,071.62 and 40,720,857.96

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Solution

The fourth proportional to 61,666,019.40, 84,962,071.62 and 40,720,857.96 is: 56,104,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666,019.40 : 84,962,071.62 = 40,720,857.96 : x
  2. Step 2: Convert to fraction form
    61,666,019.40/84,962,071.62 = 40,720,857.96/x
  3. Step 3: Cross multiply
    61,666,019.40x = 84,962,071.62 × 40,720,857.96
  4. Step 4: Simplify right side
    61,666,019.40x = 3,459,728,450,425,367.50
  5. Step 5: Solve for x
    x = 3,459,728,450,425,367.50/61,666,019.40
  6. Step 6: Final answer
    x = 56,104,293.48

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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.