Home / 79,285,537.80-118,900,313.10-28,169,224.20

Finding the Fourth Proportional to 79,285,537.80, 118,900,313.10 and 28,169,224.20

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Solution

The fourth proportional to 79,285,537.80, 118,900,313.10 and 28,169,224.20 is: 42,243,890.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,285,537.80 : 118,900,313.10 = 28,169,224.20 : x
  2. Step 2: Convert to fraction form
    79,285,537.80/118,900,313.10 = 28,169,224.20/x
  3. Step 3: Cross multiply
    79,285,537.80x = 118,900,313.10 × 28,169,224.20
  4. Step 4: Simplify right side
    79,285,537.80x = 3,349,329,577,164,097
  5. Step 5: Solve for x
    x = 3,349,329,577,164,097/79,285,537.80
  6. Step 6: Final answer
    x = 42,243,890.50

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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.