Home / 460,349,620.80-689,390,690.40-217,729,089.60

Finding the Fourth Proportional to 460,349,620.80, 689,390,690.40 and 217,729,089.60

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Solution

The fourth proportional to 460,349,620.80, 689,390,690.40 and 217,729,089.60 is: 326,057,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,349,620.80 : 689,390,690.40 = 217,729,089.60 : x
  2. Step 2: Convert to fraction form
    460,349,620.80/689,390,690.40 = 217,729,089.60/x
  3. Step 3: Cross multiply
    460,349,620.80x = 689,390,690.40 × 217,729,089.60
  4. Step 4: Simplify right side
    460,349,620.80x = 150,100,407,399,507,456
  5. Step 5: Solve for x
    x = 150,100,407,399,507,456/460,349,620.80
  6. Step 6: Final answer
    x = 326,057,415.10

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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.