Home / 31,450,007.40-43,402,796.64-18,894,902.10

Finding the Fourth Proportional to 31,450,007.40, 43,402,796.64 and 18,894,902.10

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Solution

The fourth proportional to 31,450,007.40, 43,402,796.64 and 18,894,902.10 is: 26,076,038.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450,007.40 : 43,402,796.64 = 18,894,902.10 : x
  2. Step 2: Convert to fraction form
    31,450,007.40/43,402,796.64 = 18,894,902.10/x
  3. Step 3: Cross multiply
    31,450,007.40x = 43,402,796.64 × 18,894,902.10
  4. Step 4: Simplify right side
    31,450,007.40x = 820,091,593,379,009
  5. Step 5: Solve for x
    x = 820,091,593,379,009/31,450,007.40
  6. Step 6: Final answer
    x = 26,076,038.17

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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.