Home / 86,931,403.20-130,349,865.60-29,394,057.60

Finding the Fourth Proportional to 86,931,403.20, 130,349,865.60 and 29,394,057.60

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Solution

The fourth proportional to 86,931,403.20, 130,349,865.60 and 29,394,057.60 is: 44,075,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931,403.20 : 130,349,865.60 = 29,394,057.60 : x
  2. Step 2: Convert to fraction form
    86,931,403.20/130,349,865.60 = 29,394,057.60/x
  3. Step 3: Cross multiply
    86,931,403.20x = 130,349,865.60 × 29,394,057.60
  4. Step 4: Simplify right side
    86,931,403.20x = 3,831,511,457,598,658.50
  5. Step 5: Solve for x
    x = 3,831,511,457,598,658.50/86,931,403.20
  6. Step 6: Final answer
    x = 44,075,113.44

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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.