Home / 78,066,430.65-107,780,642.87-50,237,491.59

Finding the Fourth Proportional to 78,066,430.65, 107,780,642.87 and 50,237,491.59

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Solution

The fourth proportional to 78,066,430.65, 107,780,642.87 and 50,237,491.59 is: 69,359,250.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,066,430.65 : 107,780,642.87 = 50,237,491.59 : x
  2. Step 2: Convert to fraction form
    78,066,430.65/107,780,642.87 = 50,237,491.59/x
  3. Step 3: Cross multiply
    78,066,430.65x = 107,780,642.87 × 50,237,491.59
  4. Step 4: Simplify right side
    78,066,430.65x = 5,414,629,139,495,231
  5. Step 5: Solve for x
    x = 5,414,629,139,495,231/78,066,430.65
  6. Step 6: Final answer
    x = 69,359,250.76

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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.