Home / 21,839,090.40-32,630,705.28-21,075,332.64

Finding the Fourth Proportional to 21,839,090.40, 32,630,705.28 and 21,075,332.64

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Solution

The fourth proportional to 21,839,090.40, 32,630,705.28 and 21,075,332.64 is: 31,489,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,839,090.40 : 32,630,705.28 = 21,075,332.64 : x
  2. Step 2: Convert to fraction form
    21,839,090.40/32,630,705.28 = 21,075,332.64/x
  3. Step 3: Cross multiply
    21,839,090.40x = 32,630,705.28 × 21,075,332.64
  4. Step 4: Simplify right side
    21,839,090.40x = 687,702,968,053,804.38
  5. Step 5: Solve for x
    x = 687,702,968,053,804.38/21,839,090.40
  6. Step 6: Final answer
    x = 31,489,542.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.