Home / 38,421,967.65-53,022,156.74-20,780,889.77

Finding the Fourth Proportional to 38,421,967.65, 53,022,156.74 and 20,780,889.77

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Solution

The fourth proportional to 38,421,967.65, 53,022,156.74 and 20,780,889.77 is: 28,677,542.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421,967.65 : 53,022,156.74 = 20,780,889.77 : x
  2. Step 2: Convert to fraction form
    38,421,967.65/53,022,156.74 = 20,780,889.77/x
  3. Step 3: Cross multiply
    38,421,967.65x = 53,022,156.74 × 20,780,889.77
  4. Step 4: Simplify right side
    38,421,967.65x = 1,101,847,594,290,515.75
  5. Step 5: Solve for x
    x = 1,101,847,594,290,515.75/38,421,967.65
  6. Step 6: Final answer
    x = 28,677,542.09

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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.