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Finding the Fourth Proportional to 105,558,005.20, 158,337,007.80 and 105,558,005.20

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Solution

The fourth proportional to 105,558,005.20, 158,337,007.80 and 105,558,005.20 is: 158,337,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,558,005.20 : 158,337,007.80 = 105,558,005.20 : x
  2. Step 2: Convert to fraction form
    105,558,005.20/158,337,007.80 = 105,558,005.20/x
  3. Step 3: Cross multiply
    105,558,005.20x = 158,337,007.80 × 105,558,005.20
  4. Step 4: Simplify right side
    105,558,005.20x = 16,713,738,692,704,842
  5. Step 5: Solve for x
    x = 16,713,738,692,704,842/105,558,005.20
  6. Step 6: Final answer
    x = 158,337,007.80

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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.