Home / 231,013,928.30-318,814,862.30-130,507,506.72

Finding the Fourth Proportional to 231,013,928.30, 318,814,862.30 and 130,507,506.72

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Solution

The fourth proportional to 231,013,928.30, 318,814,862.30 and 130,507,506.72 is: 180,109,195.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,013,928.30 : 318,814,862.30 = 130,507,506.72 : x
  2. Step 2: Convert to fraction form
    231,013,928.30/318,814,862.30 = 130,507,506.72/x
  3. Step 3: Cross multiply
    231,013,928.30x = 318,814,862.30 × 130,507,506.72
  4. Step 4: Simplify right side
    231,013,928.30x = 41,607,732,784,053,128
  5. Step 5: Solve for x
    x = 41,607,732,784,053,128/231,013,928.30
  6. Step 6: Final answer
    x = 180,109,195.54

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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.