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Finding the Fourth Proportional to 30,490,793.80, 45,726,490.80 and 10,015,762.96

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Solution

The fourth proportional to 30,490,793.80, 45,726,490.80 and 10,015,762.96 is: 15,020,458.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490,793.80 : 45,726,490.80 = 10,015,762.96 : x
  2. Step 2: Convert to fraction form
    30,490,793.80/45,726,490.80 = 10,015,762.96/x
  3. Step 3: Cross multiply
    30,490,793.80x = 45,726,490.80 × 10,015,762.96
  4. Step 4: Simplify right side
    30,490,793.80x = 457,985,692,845,420.75
  5. Step 5: Solve for x
    x = 457,985,692,845,420.75/30,490,793.80
  6. Step 6: Final answer
    x = 15,020,458.17

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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.