Home / 75,139,398.70-112,630,433.52-31,445,191.60

Finding the Fourth Proportional to 75,139,398.70, 112,630,433.52 and 31,445,191.60

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Solution

The fourth proportional to 75,139,398.70, 112,630,433.52 and 31,445,191.60 is: 47,134,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139,398.70 : 112,630,433.52 = 31,445,191.60 : x
  2. Step 2: Convert to fraction form
    75,139,398.70/112,630,433.52 = 31,445,191.60/x
  3. Step 3: Cross multiply
    75,139,398.70x = 112,630,433.52 × 31,445,191.60
  4. Step 4: Simplify right side
    75,139,398.70x = 3,541,685,562,027,462.50
  5. Step 5: Solve for x
    x = 3,541,685,562,027,462.50/75,139,398.70
  6. Step 6: Final answer
    x = 47,134,866.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.