Home / 74,984,734.60-112,477,101.90-21,132,046.60

Finding the Fourth Proportional to 74,984,734.60, 112,477,101.90 and 21,132,046.60

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Solution

The fourth proportional to 74,984,734.60, 112,477,101.90 and 21,132,046.60 is: 31,698,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,984,734.60 : 112,477,101.90 = 21,132,046.60 : x
  2. Step 2: Convert to fraction form
    74,984,734.60/112,477,101.90 = 21,132,046.60/x
  3. Step 3: Cross multiply
    74,984,734.60x = 112,477,101.90 × 21,132,046.60
  4. Step 4: Simplify right side
    74,984,734.60x = 2,376,871,358,783,749
  5. Step 5: Solve for x
    x = 2,376,871,358,783,749/74,984,734.60
  6. Step 6: Final answer
    x = 31,698,069.90

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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.