Home / 7,176,978.18-9,904,468.86-3,913,970.94

Finding the Fourth Proportional to 7,176,978.18, 9,904,468.86 and 3,913,970.94

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Solution

The fourth proportional to 7,176,978.18, 9,904,468.86 and 3,913,970.94 is: 5,401,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176,978.18 : 9,904,468.86 = 3,913,970.94 : x
  2. Step 2: Convert to fraction form
    7,176,978.18/9,904,468.86 = 3,913,970.94/x
  3. Step 3: Cross multiply
    7,176,978.18x = 9,904,468.86 × 3,913,970.94
  4. Step 4: Simplify right side
    7,176,978.18x = 38,765,803,294,174.92
  5. Step 5: Solve for x
    x = 38,765,803,294,174.92/7,176,978.18
  6. Step 6: Final answer
    x = 5,401,410.22

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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.