Home / 65,718,019.80-98,388,072.90-40,208,851.80

Finding the Fourth Proportional to 65,718,019.80, 98,388,072.90 and 40,208,851.80

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Solution

The fourth proportional to 65,718,019.80, 98,388,072.90 and 40,208,851.80 is: 60,197,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,718,019.80 : 98,388,072.90 = 40,208,851.80 : x
  2. Step 2: Convert to fraction form
    65,718,019.80/98,388,072.90 = 40,208,851.80/x
  3. Step 3: Cross multiply
    65,718,019.80x = 98,388,072.90 × 40,208,851.80
  4. Step 4: Simplify right side
    65,718,019.80x = 3,956,071,442,123,696
  5. Step 5: Solve for x
    x = 3,956,071,442,123,696/65,718,019.80
  6. Step 6: Final answer
    x = 60,197,666.55

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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.