Home / 286,770,829.80-429,359,982.30-278,808,205.80

Finding the Fourth Proportional to 286,770,829.80, 429,359,982.30 and 278,808,205.80

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Solution

The fourth proportional to 286,770,829.80, 429,359,982.30 and 278,808,205.80 is: 417,438,155.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,770,829.80 : 429,359,982.30 = 278,808,205.80 : x
  2. Step 2: Convert to fraction form
    286,770,829.80/429,359,982.30 = 278,808,205.80/x
  3. Step 3: Cross multiply
    286,770,829.80x = 429,359,982.30 × 278,808,205.80
  4. Step 4: Simplify right side
    286,770,829.80x = 119,709,086,307,382,768
  5. Step 5: Solve for x
    x = 119,709,086,307,382,768/286,770,829.80
  6. Step 6: Final answer
    x = 417,438,155.72

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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.