Home / 30,278,990.30-45,402,525.81-13,219,734.20

Finding the Fourth Proportional to 30,278,990.30, 45,402,525.81 and 13,219,734.20

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Solution

The fourth proportional to 30,278,990.30, 45,402,525.81 and 13,219,734.20 is: 19,822,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278,990.30 : 45,402,525.81 = 13,219,734.20 : x
  2. Step 2: Convert to fraction form
    30,278,990.30/45,402,525.81 = 13,219,734.20/x
  3. Step 3: Cross multiply
    30,278,990.30x = 45,402,525.81 × 13,219,734.20
  4. Step 4: Simplify right side
    30,278,990.30x = 600,209,322,989,827.12
  5. Step 5: Solve for x
    x = 600,209,322,989,827.12/30,278,990.30
  6. Step 6: Final answer
    x = 19,822,633.36

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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.