Home / 61,690,364.21-85,141,839.78-39,060,840.26

Finding the Fourth Proportional to 61,690,364.21, 85,141,839.78 and 39,060,840.26

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Solution

The fourth proportional to 61,690,364.21, 85,141,839.78 and 39,060,840.26 is: 53,909,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,690,364.21 : 85,141,839.78 = 39,060,840.26 : x
  2. Step 2: Convert to fraction form
    61,690,364.21/85,141,839.78 = 39,060,840.26/x
  3. Step 3: Cross multiply
    61,690,364.21x = 85,141,839.78 × 39,060,840.26
  4. Step 4: Simplify right side
    61,690,364.21x = 3,325,711,802,663,384.50
  5. Step 5: Solve for x
    x = 3,325,711,802,663,384.50/61,690,364.21
  6. Step 6: Final answer
    x = 53,909,744.99

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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.