Home / 42,628,025.40-63,951,369.30-21,072,953.40

Finding the Fourth Proportional to 42,628,025.40, 63,951,369.30 and 21,072,953.40

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Solution

The fourth proportional to 42,628,025.40, 63,951,369.30 and 21,072,953.40 is: 31,614,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,628,025.40 : 63,951,369.30 = 21,072,953.40 : x
  2. Step 2: Convert to fraction form
    42,628,025.40/63,951,369.30 = 21,072,953.40/x
  3. Step 3: Cross multiply
    42,628,025.40x = 63,951,369.30 × 21,072,953.40
  4. Step 4: Simplify right side
    42,628,025.40x = 1,347,644,225,125,090.50
  5. Step 5: Solve for x
    x = 1,347,644,225,125,090.50/42,628,025.40
  6. Step 6: Final answer
    x = 31,614,042.93

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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.