Home / 76,421,390.68-105,463,233.88-43,378,527.16

Finding the Fourth Proportional to 76,421,390.68, 105,463,233.88 and 43,378,527.16

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Solution

The fourth proportional to 76,421,390.68, 105,463,233.88 and 43,378,527.16 is: 59,863,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,421,390.68 : 105,463,233.88 = 43,378,527.16 : x
  2. Step 2: Convert to fraction form
    76,421,390.68/105,463,233.88 = 43,378,527.16/x
  3. Step 3: Cross multiply
    76,421,390.68x = 105,463,233.88 × 43,378,527.16
  4. Step 4: Simplify right side
    76,421,390.68x = 4,574,839,755,245,012
  5. Step 5: Solve for x
    x = 4,574,839,755,245,012/76,421,390.68
  6. Step 6: Final answer
    x = 59,863,340.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.