Home / 21,003,606.40-31,455,643.20-21,003,606.40

Finding the Fourth Proportional to 21,003,606.40, 31,455,643.20 and 21,003,606.40

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Solution

The fourth proportional to 21,003,606.40, 31,455,643.20 and 21,003,606.40 is: 31,455,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003,606.40 : 31,455,643.20 = 21,003,606.40 : x
  2. Step 2: Convert to fraction form
    21,003,606.40/31,455,643.20 = 21,003,606.40/x
  3. Step 3: Cross multiply
    21,003,606.40x = 31,455,643.20 × 21,003,606.40
  4. Step 4: Simplify right side
    21,003,606.40x = 660,681,948,831,636.38
  5. Step 5: Solve for x
    x = 660,681,948,831,636.38/21,003,606.40
  6. Step 6: Final answer
    x = 31,455,643.20

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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.