Home / 12,800,521.98-19,210,871.12-5,617,014.30

Finding the Fourth Proportional to 12,800,521.98, 19,210,871.12 and 5,617,014.30

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Solution

The fourth proportional to 12,800,521.98, 19,210,871.12 and 5,617,014.30 is: 8,429,948.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800,521.98 : 19,210,871.12 = 5,617,014.30 : x
  2. Step 2: Convert to fraction form
    12,800,521.98/19,210,871.12 = 5,617,014.30/x
  3. Step 3: Cross multiply
    12,800,521.98x = 19,210,871.12 × 5,617,014.30
  4. Step 4: Simplify right side
    12,800,521.98x = 107,907,737,768,411.94
  5. Step 5: Solve for x
    x = 107,907,737,768,411.94/12,800,521.98
  6. Step 6: Final answer
    x = 8,429,948.24

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1.5x scale

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.