Home / 278,683,109.98-417,790,830.84-123,211,816.90

Finding the Fourth Proportional to 278,683,109.98, 417,790,830.84 and 123,211,816.90

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Solution

The fourth proportional to 278,683,109.98, 417,790,830.84 and 123,211,816.90 is: 184,714,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,683,109.98 : 417,790,830.84 = 123,211,816.90 : x
  2. Step 2: Convert to fraction form
    278,683,109.98/417,790,830.84 = 123,211,816.90/x
  3. Step 3: Cross multiply
    278,683,109.98x = 417,790,830.84 × 123,211,816.90
  4. Step 4: Simplify right side
    278,683,109.98x = 51,476,767,351,956,952
  5. Step 5: Solve for x
    x = 51,476,767,351,956,952/278,683,109.98
  6. Step 6: Final answer
    x = 184,714,342.23

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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.