Home / 13,999,642.21-21,022,246.32-8,642,347.84

Finding the Fourth Proportional to 13,999,642.21, 21,022,246.32 and 8,642,347.84

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Solution

The fourth proportional to 13,999,642.21, 21,022,246.32 and 8,642,347.84 is: 12,977,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999,642.21 : 21,022,246.32 = 8,642,347.84 : x
  2. Step 2: Convert to fraction form
    13,999,642.21/21,022,246.32 = 8,642,347.84/x
  3. Step 3: Cross multiply
    13,999,642.21x = 21,022,246.32 × 8,642,347.84
  4. Step 4: Simplify right side
    13,999,642.21x = 181,681,565,075,599.94
  5. Step 5: Solve for x
    x = 181,681,565,075,599.94/13,999,642.21
  6. Step 6: Final answer
    x = 12,977,586.31

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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.