Home / 390,165,559.96-585,102,525.52-156,917,544.40

Finding the Fourth Proportional to 390,165,559.96, 585,102,525.52 and 156,917,544.40

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Solution

The fourth proportional to 390,165,559.96, 585,102,525.52 and 156,917,544.40 is: 235,317,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,165,559.96 : 585,102,525.52 = 156,917,544.40 : x
  2. Step 2: Convert to fraction form
    390,165,559.96/585,102,525.52 = 156,917,544.40/x
  3. Step 3: Cross multiply
    390,165,559.96x = 585,102,525.52 × 156,917,544.40
  4. Step 4: Simplify right side
    390,165,559.96x = 91,812,851,526,836,736
  5. Step 5: Solve for x
    x = 91,812,851,526,836,736/390,165,559.96
  6. Step 6: Final answer
    x = 235,317,672.67

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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.