Home / 168,005,052-231,847,128-90,742,716

Finding the Fourth Proportional to 168,005,052, 231,847,128 and 90,742,716

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Solution

The fourth proportional to 168,005,052, 231,847,128 and 90,742,716 is: 125,225,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,005,052 : 231,847,128 = 90,742,716 : x
  2. Step 2: Convert to fraction form
    168,005,052/231,847,128 = 90,742,716/x
  3. Step 3: Cross multiply
    168,005,052x = 231,847,128 × 90,742,716
  4. Step 4: Simplify right side
    168,005,052x = 21,038,438,091,519,648
  5. Step 5: Solve for x
    x = 21,038,438,091,519,648/168,005,052
  6. Step 6: Final answer
    x = 125,225,032.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.