Home / 1,621,500,512.65-2,431,621,955.53-557,721,090.40

Finding the Fourth Proportional to 1,621,500,512.65, 2,431,621,955.53 and 557,721,090.40

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Solution

The fourth proportional to 1,621,500,512.65, 2,431,621,955.53 and 557,721,090.40 is: 836,365,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,500,512.65 : 2,431,621,955.53 = 557,721,090.40 : x
  2. Step 2: Convert to fraction form
    1,621,500,512.65/2,431,621,955.53 = 557,721,090.40/x
  3. Step 3: Cross multiply
    1,621,500,512.65x = 2,431,621,955.53 × 557,721,090.40
  4. Step 4: Simplify right side
    1,621,500,512.65x = 1,356,166,848,470,858,240
  5. Step 5: Solve for x
    x = 1,356,166,848,470,858,240/1,621,500,512.65
  6. Step 6: Final answer
    x = 836,365,352.89

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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.