Home / 399,172,858.80-598,759,288.20-194,832,020.40

Finding the Fourth Proportional to 399,172,858.80, 598,759,288.20 and 194,832,020.40

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Solution

The fourth proportional to 399,172,858.80, 598,759,288.20 and 194,832,020.40 is: 292,248,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,172,858.80 : 598,759,288.20 = 194,832,020.40 : x
  2. Step 2: Convert to fraction form
    399,172,858.80/598,759,288.20 = 194,832,020.40/x
  3. Step 3: Cross multiply
    399,172,858.80x = 598,759,288.20 × 194,832,020.40
  4. Step 4: Simplify right side
    399,172,858.80x = 116,657,481,853,271,888
  5. Step 5: Solve for x
    x = 116,657,481,853,271,888/399,172,858.80
  6. Step 6: Final answer
    x = 292,248,030.60

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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.