Home / 1,109,824,419.51-1,664,239,067.55-661,339,325.16

Finding the Fourth Proportional to 1,109,824,419.51, 1,664,239,067.55 and 661,339,325.16

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Solution

The fourth proportional to 1,109,824,419.51, 1,664,239,067.55 and 661,339,325.16 is: 991,712,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,824,419.51 : 1,664,239,067.55 = 661,339,325.16 : x
  2. Step 2: Convert to fraction form
    1,109,824,419.51/1,664,239,067.55 = 661,339,325.16/x
  3. Step 3: Cross multiply
    1,109,824,419.51x = 1,664,239,067.55 × 661,339,325.16
  4. Step 4: Simplify right side
    1,109,824,419.51x = 1,100,626,741,838,424,576
  5. Step 5: Solve for x
    x = 1,100,626,741,838,424,576/1,109,824,419.51
  6. Step 6: Final answer
    x = 991,712,492.98

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Double scale
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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.