Home / 61,819,999.80-92,729,999.70-39,126,521.40

Finding the Fourth Proportional to 61,819,999.80, 92,729,999.70 and 39,126,521.40

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Solution

The fourth proportional to 61,819,999.80, 92,729,999.70 and 39,126,521.40 is: 58,689,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,819,999.80 : 92,729,999.70 = 39,126,521.40 : x
  2. Step 2: Convert to fraction form
    61,819,999.80/92,729,999.70 = 39,126,521.40/x
  3. Step 3: Cross multiply
    61,819,999.80x = 92,729,999.70 × 39,126,521.40
  4. Step 4: Simplify right side
    61,819,999.80x = 3,628,202,317,684,043.50
  5. Step 5: Solve for x
    x = 3,628,202,317,684,043.50/61,819,999.80
  6. Step 6: Final answer
    x = 58,689,782.10

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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.