Home / 199,290,763.80-298,936,145.70-126,828,783.45

Finding the Fourth Proportional to 199,290,763.80, 298,936,145.70 and 126,828,783.45

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Solution

The fourth proportional to 199,290,763.80, 298,936,145.70 and 126,828,783.45 is: 190,243,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,290,763.80 : 298,936,145.70 = 126,828,783.45 : x
  2. Step 2: Convert to fraction form
    199,290,763.80/298,936,145.70 = 126,828,783.45/x
  3. Step 3: Cross multiply
    199,290,763.80x = 298,936,145.70 × 126,828,783.45
  4. Step 4: Simplify right side
    199,290,763.80x = 37,913,707,688,362,952
  5. Step 5: Solve for x
    x = 37,913,707,688,362,952/199,290,763.80
  6. Step 6: Final answer
    x = 190,243,175.18

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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.