Home / 56,770,685.28-78,343,533.59-30,665,203.38

Finding the Fourth Proportional to 56,770,685.28, 78,343,533.59 and 30,665,203.38

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Solution

The fourth proportional to 56,770,685.28, 78,343,533.59 and 30,665,203.38 is: 42,317,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770,685.28 : 78,343,533.59 = 30,665,203.38 : x
  2. Step 2: Convert to fraction form
    56,770,685.28/78,343,533.59 = 30,665,203.38/x
  3. Step 3: Cross multiply
    56,770,685.28x = 78,343,533.59 × 30,665,203.38
  4. Step 4: Simplify right side
    56,770,685.28x = 2,402,420,390,891,885
  5. Step 5: Solve for x
    x = 2,402,420,390,891,885/56,770,685.28
  6. Step 6: Final answer
    x = 42,317,974.13

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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.