Home / 1,305,710,012.40-1,958,565,018.60-432,446,161.20

Finding the Fourth Proportional to 1,305,710,012.40, 1,958,565,018.60 and 432,446,161.20

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Solution

The fourth proportional to 1,305,710,012.40, 1,958,565,018.60 and 432,446,161.20 is: 648,669,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,710,012.40 : 1,958,565,018.60 = 432,446,161.20 : x
  2. Step 2: Convert to fraction form
    1,305,710,012.40/1,958,565,018.60 = 432,446,161.20/x
  3. Step 3: Cross multiply
    1,305,710,012.40x = 1,958,565,018.60 × 432,446,161.20
  4. Step 4: Simplify right side
    1,305,710,012.40x = 846,973,923,754,176,512
  5. Step 5: Solve for x
    x = 846,973,923,754,176,512/1,305,710,012.40
  6. Step 6: Final answer
    x = 648,669,241.80

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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.