Home / 328,101,329.60-492,151,994.40-85,764,233.60

Finding the Fourth Proportional to 328,101,329.60, 492,151,994.40 and 85,764,233.60

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Solution

The fourth proportional to 328,101,329.60, 492,151,994.40 and 85,764,233.60 is: 128,646,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,101,329.60 : 492,151,994.40 = 85,764,233.60 : x
  2. Step 2: Convert to fraction form
    328,101,329.60/492,151,994.40 = 85,764,233.60/x
  3. Step 3: Cross multiply
    328,101,329.60x = 492,151,994.40 × 85,764,233.60
  4. Step 4: Simplify right side
    328,101,329.60x = 42,209,038,614,427,488
  5. Step 5: Solve for x
    x = 42,209,038,614,427,488/328,101,329.60
  6. Step 6: Final answer
    x = 128,646,350.40

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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.