Home / 57,004,399.86-78,663,964.31-30,898,357.19

Finding the Fourth Proportional to 57,004,399.86, 78,663,964.31 and 30,898,357.19

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Solution

The fourth proportional to 57,004,399.86, 78,663,964.31 and 30,898,357.19 is: 42,638,590.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004,399.86 : 78,663,964.31 = 30,898,357.19 : x
  2. Step 2: Convert to fraction form
    57,004,399.86/78,663,964.31 = 30,898,357.19/x
  3. Step 3: Cross multiply
    57,004,399.86x = 78,663,964.31 × 30,898,357.19
  4. Step 4: Simplify right side
    57,004,399.86x = 2,430,587,266,683,980.50
  5. Step 5: Solve for x
    x = 2,430,587,266,683,980.50/57,004,399.86
  6. Step 6: Final answer
    x = 42,638,590.58

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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.