Home / 1,305,713,999.40-1,958,570,999.10-432,450,148.20

Finding the Fourth Proportional to 1,305,713,999.40, 1,958,570,999.10 and 432,450,148.20

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Solution

The fourth proportional to 1,305,713,999.40, 1,958,570,999.10 and 432,450,148.20 is: 648,675,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,713,999.40 : 1,958,570,999.10 = 432,450,148.20 : x
  2. Step 2: Convert to fraction form
    1,305,713,999.40/1,958,570,999.10 = 432,450,148.20/x
  3. Step 3: Cross multiply
    1,305,713,999.40x = 1,958,570,999.10 × 432,450,148.20
  4. Step 4: Simplify right side
    1,305,713,999.40x = 846,984,318,821,016,960
  5. Step 5: Solve for x
    x = 846,984,318,821,016,960/1,305,713,999.40
  6. Step 6: Final answer
    x = 648,675,222.30

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Double scale
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Similar ratio
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1.5x scale

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.