Home / 49,478,122.90-74,243,756.40-20,727,164.80

Finding the Fourth Proportional to 49,478,122.90, 74,243,756.40 and 20,727,164.80

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Solution

The fourth proportional to 49,478,122.90, 74,243,756.40 and 20,727,164.80 is: 31,101,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,478,122.90 : 74,243,756.40 = 20,727,164.80 : x
  2. Step 2: Convert to fraction form
    49,478,122.90/74,243,756.40 = 20,727,164.80/x
  3. Step 3: Cross multiply
    49,478,122.90x = 74,243,756.40 × 20,727,164.80
  4. Step 4: Simplify right side
    49,478,122.90x = 1,538,862,574,273,855
  5. Step 5: Solve for x
    x = 1,538,862,574,273,855/49,478,122.90
  6. Step 6: Final answer
    x = 31,101,878.65

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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.