Home / 56,967,418.11-78,614,602.46-30,861,749.21

Finding the Fourth Proportional to 56,967,418.11, 78,614,602.46 and 30,861,749.21

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Solution

The fourth proportional to 56,967,418.11, 78,614,602.46 and 30,861,749.21 is: 42,588,978.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,967,418.11 : 78,614,602.46 = 30,861,749.21 : x
  2. Step 2: Convert to fraction form
    56,967,418.11/78,614,602.46 = 30,861,749.21/x
  3. Step 3: Cross multiply
    56,967,418.11x = 78,614,602.46 × 30,861,749.21
  4. Step 4: Simplify right side
    56,967,418.11x = 2,426,184,145,106,316
  5. Step 5: Solve for x
    x = 2,426,184,145,106,316/56,967,418.11
  6. Step 6: Final answer
    x = 42,588,978.50

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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.