Home / 278,152,405.80-417,209,946.30-73,676,092.20

Finding the Fourth Proportional to 278,152,405.80, 417,209,946.30 and 73,676,092.20

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Solution

The fourth proportional to 278,152,405.80, 417,209,946.30 and 73,676,092.20 is: 110,509,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,152,405.80 : 417,209,946.30 = 73,676,092.20 : x
  2. Step 2: Convert to fraction form
    278,152,405.80/417,209,946.30 = 73,676,092.20/x
  3. Step 3: Cross multiply
    278,152,405.80x = 417,209,946.30 × 73,676,092.20
  4. Step 4: Simplify right side
    278,152,405.80x = 30,738,398,470,355,852
  5. Step 5: Solve for x
    x = 30,738,398,470,355,852/278,152,405.80
  6. Step 6: Final answer
    x = 110,509,195.07

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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.