Home / 278,841,346.86-417,879,378.45-176,422,038.06

Finding the Fourth Proportional to 278,841,346.86, 417,879,378.45 and 176,422,038.06

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Solution

The fourth proportional to 278,841,346.86, 417,879,378.45 and 176,422,038.06 is: 264,390,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,841,346.86 : 417,879,378.45 = 176,422,038.06 : x
  2. Step 2: Convert to fraction form
    278,841,346.86/417,879,378.45 = 176,422,038.06/x
  3. Step 3: Cross multiply
    278,841,346.86x = 417,879,378.45 × 176,422,038.06
  4. Step 4: Simplify right side
    278,841,346.86x = 73,723,131,609,395,040
  5. Step 5: Solve for x
    x = 73,723,131,609,395,040/278,841,346.86
  6. Step 6: Final answer
    x = 264,390,960.81

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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.