Home / 639,244,816.80-958,867,225.20-294,871,048.80

Finding the Fourth Proportional to 639,244,816.80, 958,867,225.20 and 294,871,048.80

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Solution

The fourth proportional to 639,244,816.80, 958,867,225.20 and 294,871,048.80 is: 442,306,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,244,816.80 : 958,867,225.20 = 294,871,048.80 : x
  2. Step 2: Convert to fraction form
    639,244,816.80/958,867,225.20 = 294,871,048.80/x
  3. Step 3: Cross multiply
    639,244,816.80x = 958,867,225.20 × 294,871,048.80
  4. Step 4: Simplify right side
    639,244,816.80x = 282,742,184,354,669,824
  5. Step 5: Solve for x
    x = 282,742,184,354,669,824/639,244,816.80
  6. Step 6: Final answer
    x = 442,306,573.20

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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.