Home / 323,834,948.18-485,638,765.21-90,602,986.53

Finding the Fourth Proportional to 323,834,948.18, 485,638,765.21 and 90,602,986.53

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Solution

The fourth proportional to 323,834,948.18, 485,638,765.21 and 90,602,986.53 is: 135,872,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,834,948.18 : 485,638,765.21 = 90,602,986.53 : x
  2. Step 2: Convert to fraction form
    323,834,948.18/485,638,765.21 = 90,602,986.53/x
  3. Step 3: Cross multiply
    323,834,948.18x = 485,638,765.21 × 90,602,986.53
  4. Step 4: Simplify right side
    323,834,948.18x = 44,000,322,502,314,448
  5. Step 5: Solve for x
    x = 44,000,322,502,314,448/323,834,948.18
  6. Step 6: Final answer
    x = 135,872,680.67

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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.