Home / 161,702,835.90-242,564,751.45-85,175,331.90

Finding the Fourth Proportional to 161,702,835.90, 242,564,751.45 and 85,175,331.90

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Solution

The fourth proportional to 161,702,835.90, 242,564,751.45 and 85,175,331.90 is: 127,768,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,702,835.90 : 242,564,751.45 = 85,175,331.90 : x
  2. Step 2: Convert to fraction form
    161,702,835.90/242,564,751.45 = 85,175,331.90/x
  3. Step 3: Cross multiply
    161,702,835.90x = 242,564,751.45 × 85,175,331.90
  4. Step 4: Simplify right side
    161,702,835.90x = 20,660,533,211,994,756
  5. Step 5: Solve for x
    x = 20,660,533,211,994,756/161,702,835.90
  6. Step 6: Final answer
    x = 127,768,527.35

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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.