Home / 278,527,009,500.80-417,872,483,710.08-89,869,365,906.56

Finding the Fourth Proportional to 278,527,009,500.80, 417,872,483,710.08 and 89,869,365,906.56

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Solution

The fourth proportional to 278,527,009,500.80, 417,872,483,710.08 and 89,869,365,906.56 is: 134,830,497,078.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,527,009,500.80 : 417,872,483,710.08 = 89,869,365,906.56 : x
  2. Step 2: Convert to fraction form
    278,527,009,500.80/417,872,483,710.08 = 89,869,365,906.56/x
  3. Step 3: Cross multiply
    278,527,009,500.80x = 417,872,483,710.08 × 89,869,365,906.56
  4. Step 4: Simplify right side
    278,527,009,500.80x = 37,553,935,140,824,211,783,680
  5. Step 5: Solve for x
    x = 37,553,935,140,824,211,783,680/278,527,009,500.80
  6. Step 6: Final answer
    x = 134,830,497,078.66

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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.