Home / 140,240,783.98-193,533,254.67-78,363,730.54

Finding the Fourth Proportional to 140,240,783.98, 193,533,254.67 and 78,363,730.54

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Solution

The fourth proportional to 140,240,783.98, 193,533,254.67 and 78,363,730.54 is: 108,142,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,240,783.98 : 193,533,254.67 = 78,363,730.54 : x
  2. Step 2: Convert to fraction form
    140,240,783.98/193,533,254.67 = 78,363,730.54/x
  3. Step 3: Cross multiply
    140,240,783.98x = 193,533,254.67 × 78,363,730.54
  4. Step 4: Simplify right side
    140,240,783.98x = 15,165,987,819,489,076
  5. Step 5: Solve for x
    x = 15,165,987,819,489,076/140,240,783.98
  6. Step 6: Final answer
    x = 108,142,491.71

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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.