Home / 1,206,849,344.40-1,809,848,863.80-430,520,331.60

Finding the Fourth Proportional to 1,206,849,344.40, 1,809,848,863.80 and 430,520,331.60

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Solution

The fourth proportional to 1,206,849,344.40, 1,809,848,863.80 and 430,520,331.60 is: 645,628,832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,849,344.40 : 1,809,848,863.80 = 430,520,331.60 : x
  2. Step 2: Convert to fraction form
    1,206,849,344.40/1,809,848,863.80 = 430,520,331.60/x
  3. Step 3: Cross multiply
    1,206,849,344.40x = 1,809,848,863.80 × 430,520,331.60
  4. Step 4: Simplify right side
    1,206,849,344.40x = 779,176,732,989,059,200
  5. Step 5: Solve for x
    x = 779,176,732,989,059,200/1,206,849,344.40
  6. Step 6: Final answer
    x = 645,628,832.30

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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.