Home / 75,066,122.47-112,616,162.31-40,521,782.78

Finding the Fourth Proportional to 75,066,122.47, 112,616,162.31 and 40,521,782.78

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Solution

The fourth proportional to 75,066,122.47, 112,616,162.31 and 40,521,782.78 is: 60,791,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,066,122.47 : 112,616,162.31 = 40,521,782.78 : x
  2. Step 2: Convert to fraction form
    75,066,122.47/112,616,162.31 = 40,521,782.78/x
  3. Step 3: Cross multiply
    75,066,122.47x = 112,616,162.31 × 40,521,782.78
  4. Step 4: Simplify right side
    75,066,122.47x = 4,563,407,666,643,043
  5. Step 5: Solve for x
    x = 4,563,407,666,643,043/75,066,122.47
  6. Step 6: Final answer
    x = 60,791,839.47

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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.