Home / 56,963,771.46-78,609,933.59-30,858,397.20

Finding the Fourth Proportional to 56,963,771.46, 78,609,933.59 and 30,858,397.20

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Solution

The fourth proportional to 56,963,771.46, 78,609,933.59 and 30,858,397.20 is: 42,584,549.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,963,771.46 : 78,609,933.59 = 30,858,397.20 : x
  2. Step 2: Convert to fraction form
    56,963,771.46/78,609,933.59 = 30,858,397.20/x
  3. Step 3: Cross multiply
    56,963,771.46x = 78,609,933.59 × 30,858,397.20
  4. Step 4: Simplify right side
    56,963,771.46x = 2,425,776,554,431,549.50
  5. Step 5: Solve for x
    x = 2,425,776,554,431,549.50/56,963,771.46
  6. Step 6: Final answer
    x = 42,584,549.66

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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.