Home / 30,120,004.80-45,180,007.20-9,922,622.40

Finding the Fourth Proportional to 30,120,004.80, 45,180,007.20 and 9,922,622.40

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Solution

The fourth proportional to 30,120,004.80, 45,180,007.20 and 9,922,622.40 is: 14,883,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120,004.80 : 45,180,007.20 = 9,922,622.40 : x
  2. Step 2: Convert to fraction form
    30,120,004.80/45,180,007.20 = 9,922,622.40/x
  3. Step 3: Cross multiply
    30,120,004.80x = 45,180,007.20 × 9,922,622.40
  4. Step 4: Simplify right side
    30,120,004.80x = 448,304,151,474,881.31
  5. Step 5: Solve for x
    x = 448,304,151,474,881.31/30,120,004.80
  6. Step 6: Final answer
    x = 14,883,933.60

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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.