Home / 1,019,938,643.80-1,529,907,965.70-330,340,802.20

Finding the Fourth Proportional to 1,019,938,643.80, 1,529,907,965.70 and 330,340,802.20

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Solution

The fourth proportional to 1,019,938,643.80, 1,529,907,965.70 and 330,340,802.20 is: 495,511,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,938,643.80 : 1,529,907,965.70 = 330,340,802.20 : x
  2. Step 2: Convert to fraction form
    1,019,938,643.80/1,529,907,965.70 = 330,340,802.20/x
  3. Step 3: Cross multiply
    1,019,938,643.80x = 1,529,907,965.70 × 330,340,802.20
  4. Step 4: Simplify right side
    1,019,938,643.80x = 505,391,024,681,508,096
  5. Step 5: Solve for x
    x = 505,391,024,681,508,096/1,019,938,643.80
  6. Step 6: Final answer
    x = 495,511,203.30

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Double scale
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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.