Home / 293,420,620.80-440,130,931.20-140,365,612.80

Finding the Fourth Proportional to 293,420,620.80, 440,130,931.20 and 140,365,612.80

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Solution

The fourth proportional to 293,420,620.80, 440,130,931.20 and 140,365,612.80 is: 210,548,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,420,620.80 : 440,130,931.20 = 140,365,612.80 : x
  2. Step 2: Convert to fraction form
    293,420,620.80/440,130,931.20 = 140,365,612.80/x
  3. Step 3: Cross multiply
    293,420,620.80x = 440,130,931.20 × 140,365,612.80
  4. Step 4: Simplify right side
    293,420,620.80x = 61,779,247,870,122,640
  5. Step 5: Solve for x
    x = 61,779,247,870,122,640/293,420,620.80
  6. Step 6: Final answer
    x = 210,548,419.20

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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.