Home / 1,345,213,658.20-2,017,820,487.30-618,202,370.20

Finding the Fourth Proportional to 1,345,213,658.20, 2,017,820,487.30 and 618,202,370.20

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Solution

The fourth proportional to 1,345,213,658.20, 2,017,820,487.30 and 618,202,370.20 is: 927,303,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,213,658.20 : 2,017,820,487.30 = 618,202,370.20 : x
  2. Step 2: Convert to fraction form
    1,345,213,658.20/2,017,820,487.30 = 618,202,370.20/x
  3. Step 3: Cross multiply
    1,345,213,658.20x = 2,017,820,487.30 × 618,202,370.20
  4. Step 4: Simplify right side
    1,345,213,658.20x = 1,247,421,407,886,979,072
  5. Step 5: Solve for x
    x = 1,247,421,407,886,979,072/1,345,213,658.20
  6. Step 6: Final answer
    x = 927,303,555.30

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Double scale
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Similar ratio
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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.