Home / 201,408,239,257.28-301,963,420,756.96-121,802,091,130.16

Finding the Fourth Proportional to 201,408,239,257.28, 301,963,420,756.96 and 121,802,091,130.16

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Solution

The fourth proportional to 201,408,239,257.28, 301,963,420,756.96 and 121,802,091,130.16 is: 182,613,066,022.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,408,239,257.28 : 301,963,420,756.96 = 121,802,091,130.16 : x
  2. Step 2: Convert to fraction form
    201,408,239,257.28/301,963,420,756.96 = 121,802,091,130.16/x
  3. Step 3: Cross multiply
    201,408,239,257.28x = 301,963,420,756.96 × 121,802,091,130.16
  4. Step 4: Simplify right side
    201,408,239,257.28x = 36,779,776,093,014,093,463,552
  5. Step 5: Solve for x
    x = 36,779,776,093,014,093,463,552/201,408,239,257.28
  6. Step 6: Final answer
    x = 182,613,066,022.74

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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.