Home / 659,972,134.40-988,824,460.80-314,181,190.40

Finding the Fourth Proportional to 659,972,134.40, 988,824,460.80 and 314,181,190.40

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Solution

The fourth proportional to 659,972,134.40, 988,824,460.80 and 314,181,190.40 is: 470,732,065.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,972,134.40 : 988,824,460.80 = 314,181,190.40 : x
  2. Step 2: Convert to fraction form
    659,972,134.40/988,824,460.80 = 314,181,190.40/x
  3. Step 3: Cross multiply
    659,972,134.40x = 988,824,460.80 × 314,181,190.40
  4. Step 4: Simplify right side
    659,972,134.40x = 310,670,046,190,782,080
  5. Step 5: Solve for x
    x = 310,670,046,190,782,080/659,972,134.40
  6. Step 6: Final answer
    x = 470,732,065.79

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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.