Home / 30,819,657.20-46,179,719.40-19,439,740.40

Finding the Fourth Proportional to 30,819,657.20, 46,179,719.40 and 19,439,740.40

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Solution

The fourth proportional to 30,819,657.20, 46,179,719.40 and 19,439,740.40 is: 29,128,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,819,657.20 : 46,179,719.40 = 19,439,740.40 : x
  2. Step 2: Convert to fraction form
    30,819,657.20/46,179,719.40 = 19,439,740.40/x
  3. Step 3: Cross multiply
    30,819,657.20x = 46,179,719.40 × 19,439,740.40
  4. Step 4: Simplify right side
    30,819,657.20x = 897,721,756,880,843.62
  5. Step 5: Solve for x
    x = 897,721,756,880,843.62/30,819,657.20
  6. Step 6: Final answer
    x = 29,128,220.05

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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.