Home / 38,148,946.80-57,226,919.40-12,590,012.40

Finding the Fourth Proportional to 38,148,946.80, 57,226,919.40 and 12,590,012.40

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Solution

The fourth proportional to 38,148,946.80, 57,226,919.40 and 12,590,012.40 is: 18,886,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148,946.80 : 57,226,919.40 = 12,590,012.40 : x
  2. Step 2: Convert to fraction form
    38,148,946.80/57,226,919.40 = 12,590,012.40/x
  3. Step 3: Cross multiply
    38,148,946.80x = 57,226,919.40 × 12,590,012.40
  4. Step 4: Simplify right side
    38,148,946.80x = 720,487,624,859,800.62
  5. Step 5: Solve for x
    x = 720,487,624,859,800.62/38,148,946.80
  6. Step 6: Final answer
    x = 18,886,173.41

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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.