Home / 28,232,803.55-38,939,303.97-20,421,617.30

Finding the Fourth Proportional to 28,232,803.55, 38,939,303.97 and 20,421,617.30

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Solution

The fourth proportional to 28,232,803.55, 38,939,303.97 and 20,421,617.30 is: 28,165,943.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232,803.55 : 38,939,303.97 = 20,421,617.30 : x
  2. Step 2: Convert to fraction form
    28,232,803.55/38,939,303.97 = 20,421,617.30/x
  3. Step 3: Cross multiply
    28,232,803.55x = 38,939,303.97 × 20,421,617.30
  4. Step 4: Simplify right side
    28,232,803.55x = 795,203,563,603,710.62
  5. Step 5: Solve for x
    x = 795,203,563,603,710.62/28,232,803.55
  6. Step 6: Final answer
    x = 28,165,943.99

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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.