Home / 161,702,998.40-242,564,995.20-85,175,494.40

Finding the Fourth Proportional to 161,702,998.40, 242,564,995.20 and 85,175,494.40

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Solution

The fourth proportional to 161,702,998.40, 242,564,995.20 and 85,175,494.40 is: 127,768,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,702,998.40 : 242,564,995.20 = 85,175,494.40 : x
  2. Step 2: Convert to fraction form
    161,702,998.40/242,564,995.20 = 85,175,494.40/x
  3. Step 3: Cross multiply
    161,702,998.40x = 242,564,995.20 × 85,175,494.40
  4. Step 4: Simplify right side
    161,702,998.40x = 20,660,593,390,293,628
  5. Step 5: Solve for x
    x = 20,660,593,390,293,628/161,702,998.40
  6. Step 6: Final answer
    x = 127,768,771.11

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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.