Home / 38,713,455.71-53,425,978.70-21,071,505.66

Finding the Fourth Proportional to 38,713,455.71, 53,425,978.70 and 21,071,505.66

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Solution

The fourth proportional to 38,713,455.71, 53,425,978.70 and 21,071,505.66 is: 29,079,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,713,455.71 : 53,425,978.70 = 21,071,505.66 : x
  2. Step 2: Convert to fraction form
    38,713,455.71/53,425,978.70 = 21,071,505.66/x
  3. Step 3: Cross multiply
    38,713,455.71x = 53,425,978.70 × 21,071,505.66
  4. Step 4: Simplify right side
    38,713,455.71x = 1,125,765,812,462,731.88
  5. Step 5: Solve for x
    x = 1,125,765,812,462,731.88/38,713,455.71
  6. Step 6: Final answer
    x = 29,079,445.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.