Home / 318,553,240,011.72-439,603,647,566.40-172,065,700,670.51

Finding the Fourth Proportional to 318,553,240,011.72, 439,603,647,566.40 and 172,065,700,670.51

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Solution

The fourth proportional to 318,553,240,011.72, 439,603,647,566.40 and 172,065,700,670.51 is: 237,450,762,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,553,240,011.72 : 439,603,647,566.40 = 172,065,700,670.51 : x
  2. Step 2: Convert to fraction form
    318,553,240,011.72/439,603,647,566.40 = 172,065,700,670.51/x
  3. Step 3: Cross multiply
    318,553,240,011.72x = 439,603,647,566.40 × 172,065,700,670.51
  4. Step 4: Simplify right side
    318,553,240,011.72x = 75,640,709,635,824,565,616,640
  5. Step 5: Solve for x
    x = 75,640,709,635,824,565,616,640/318,553,240,011.72
  6. Step 6: Final answer
    x = 237,450,762,180.42

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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.