Home / 220,134,008.40-330,201,012.60-90,698,600.40

Finding the Fourth Proportional to 220,134,008.40, 330,201,012.60 and 90,698,600.40

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Solution

The fourth proportional to 220,134,008.40, 330,201,012.60 and 90,698,600.40 is: 136,047,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,134,008.40 : 330,201,012.60 = 90,698,600.40 : x
  2. Step 2: Convert to fraction form
    220,134,008.40/330,201,012.60 = 90,698,600.40/x
  3. Step 3: Cross multiply
    220,134,008.40x = 330,201,012.60 × 90,698,600.40
  4. Step 4: Simplify right side
    220,134,008.40x = 29,948,769,693,482,768
  5. Step 5: Solve for x
    x = 29,948,769,693,482,768/220,134,008.40
  6. Step 6: Final answer
    x = 136,047,900.60

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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.