Home / 201,275,663.60-301,807,207.20-86,130,113.60

Finding the Fourth Proportional to 201,275,663.60, 301,807,207.20 and 86,130,113.60

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Solution

The fourth proportional to 201,275,663.60, 301,807,207.20 and 86,130,113.60 is: 129,149,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,275,663.60 : 301,807,207.20 = 86,130,113.60 : x
  2. Step 2: Convert to fraction form
    201,275,663.60/301,807,207.20 = 86,130,113.60/x
  3. Step 3: Cross multiply
    201,275,663.60x = 301,807,207.20 × 86,130,113.60
  4. Step 4: Simplify right side
    201,275,663.60x = 25,994,689,041,434,736
  5. Step 5: Solve for x
    x = 25,994,689,041,434,736/201,275,663.60
  6. Step 6: Final answer
    x = 129,149,687.43

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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.