Home / 52,626,968.02-78,945,866.39-19,865,132.70

Finding the Fourth Proportional to 52,626,968.02, 78,945,866.39 and 19,865,132.70

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Solution

The fourth proportional to 52,626,968.02, 78,945,866.39 and 19,865,132.70 is: 29,799,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,626,968.02 : 78,945,866.39 = 19,865,132.70 : x
  2. Step 2: Convert to fraction form
    52,626,968.02/78,945,866.39 = 19,865,132.70/x
  3. Step 3: Cross multiply
    52,626,968.02x = 78,945,866.39 × 19,865,132.70
  4. Step 4: Simplify right side
    52,626,968.02x = 1,568,270,111,953,820
  5. Step 5: Solve for x
    x = 1,568,270,111,953,820/52,626,968.02
  6. Step 6: Final answer
    x = 29,799,742.81

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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.