Home / 1,237,354,625.72-1,707,581,745.86-672,872,521.73

Finding the Fourth Proportional to 1,237,354,625.72, 1,707,581,745.86 and 672,872,521.73

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Solution

The fourth proportional to 1,237,354,625.72, 1,707,581,745.86 and 672,872,521.73 is: 928,581,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,354,625.72 : 1,707,581,745.86 = 672,872,521.73 : x
  2. Step 2: Convert to fraction form
    1,237,354,625.72/1,707,581,745.86 = 672,872,521.73/x
  3. Step 3: Cross multiply
    1,237,354,625.72x = 1,707,581,745.86 × 672,872,521.73
  4. Step 4: Simplify right side
    1,237,354,625.72x = 1,148,984,835,396,934,144
  5. Step 5: Solve for x
    x = 1,148,984,835,396,934,144/1,237,354,625.72
  6. Step 6: Final answer
    x = 928,581,678.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.