Home / 286,770,835.30-429,359,990.55-278,808,211.30

Finding the Fourth Proportional to 286,770,835.30, 429,359,990.55 and 278,808,211.30

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Solution

The fourth proportional to 286,770,835.30, 429,359,990.55 and 278,808,211.30 is: 417,438,163.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,770,835.30 : 429,359,990.55 = 278,808,211.30 : x
  2. Step 2: Convert to fraction form
    286,770,835.30/429,359,990.55 = 278,808,211.30/x
  3. Step 3: Cross multiply
    286,770,835.30x = 429,359,990.55 × 278,808,211.30
  4. Step 4: Simplify right side
    286,770,835.30x = 119,709,090,969,030,416
  5. Step 5: Solve for x
    x = 119,709,090,969,030,416/286,770,835.30
  6. Step 6: Final answer
    x = 417,438,163.97

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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.