Home / 84,014,150.40-126,021,225.60-20,188,742.40

Finding the Fourth Proportional to 84,014,150.40, 126,021,225.60 and 20,188,742.40

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Solution

The fourth proportional to 84,014,150.40, 126,021,225.60 and 20,188,742.40 is: 30,283,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,014,150.40 : 126,021,225.60 = 20,188,742.40 : x
  2. Step 2: Convert to fraction form
    84,014,150.40/126,021,225.60 = 20,188,742.40/x
  3. Step 3: Cross multiply
    84,014,150.40x = 126,021,225.60 × 20,188,742.40
  4. Step 4: Simplify right side
    84,014,150.40x = 2,544,210,060,570,685
  5. Step 5: Solve for x
    x = 2,544,210,060,570,685/84,014,150.40
  6. Step 6: Final answer
    x = 30,283,113.60

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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.