Home / 13,999,643.96-21,022,248.95-8,642,349.59

Finding the Fourth Proportional to 13,999,643.96, 21,022,248.95 and 8,642,349.59

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Solution

The fourth proportional to 13,999,643.96, 21,022,248.95 and 8,642,349.59 is: 12,977,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999,643.96 : 21,022,248.95 = 8,642,349.59 : x
  2. Step 2: Convert to fraction form
    13,999,643.96/21,022,248.95 = 8,642,349.59/x
  3. Step 3: Cross multiply
    13,999,643.96x = 21,022,248.95 × 8,642,349.59
  4. Step 4: Simplify right side
    13,999,643.96x = 181,681,624,550,698.69
  5. Step 5: Solve for x
    x = 181,681,624,550,698.69/13,999,643.96
  6. Step 6: Final answer
    x = 12,977,588.94

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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.