Home / 84,014,158.40-126,021,237.60-20,188,750.40

Finding the Fourth Proportional to 84,014,158.40, 126,021,237.60 and 20,188,750.40

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Solution

The fourth proportional to 84,014,158.40, 126,021,237.60 and 20,188,750.40 is: 30,283,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,014,158.40 : 126,021,237.60 = 20,188,750.40 : x
  2. Step 2: Convert to fraction form
    84,014,158.40/126,021,237.60 = 20,188,750.40/x
  3. Step 3: Cross multiply
    84,014,158.40x = 126,021,237.60 × 20,188,750.40
  4. Step 4: Simplify right side
    84,014,158.40x = 2,544,211,311,005,494.50
  5. Step 5: Solve for x
    x = 2,544,211,311,005,494.50/84,014,158.40
  6. Step 6: Final answer
    x = 30,283,125.60

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1.5x scale

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.