Home / 21,339,705.51-32,009,642.30-5,165,630.80

Finding the Fourth Proportional to 21,339,705.51, 32,009,642.30 and 5,165,630.80

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Solution

The fourth proportional to 21,339,705.51, 32,009,642.30 and 5,165,630.80 is: 7,748,466.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339,705.51 : 32,009,642.30 = 5,165,630.80 : x
  2. Step 2: Convert to fraction form
    21,339,705.51/32,009,642.30 = 5,165,630.80/x
  3. Step 3: Cross multiply
    21,339,705.51x = 32,009,642.30 × 5,165,630.80
  4. Step 4: Simplify right side
    21,339,705.51x = 165,349,994,094,752.81
  5. Step 5: Solve for x
    x = 165,349,994,094,752.81/21,339,705.51
  6. Step 6: Final answer
    x = 7,748,466.54

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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.