Home / 57,142,112.46-78,856,693.88-31,037,140.05

Finding the Fourth Proportional to 57,142,112.46, 78,856,693.88 and 31,037,140.05

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Solution

The fourth proportional to 57,142,112.46, 78,856,693.88 and 31,037,140.05 is: 42,831,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,142,112.46 : 78,856,693.88 = 31,037,140.05 : x
  2. Step 2: Convert to fraction form
    57,142,112.46/78,856,693.88 = 31,037,140.05/x
  3. Step 3: Cross multiply
    57,142,112.46x = 78,856,693.88 × 31,037,140.05
  4. Step 4: Simplify right side
    57,142,112.46x = 2,447,486,251,678,352.50
  5. Step 5: Solve for x
    x = 2,447,486,251,678,352.50/57,142,112.46
  6. Step 6: Final answer
    x = 42,831,567.58

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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.