Home / 258,988,986.40-388,427,492.40-113,422,266.40

Finding the Fourth Proportional to 258,988,986.40, 388,427,492.40 and 113,422,266.40

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Solution

The fourth proportional to 258,988,986.40, 388,427,492.40 and 113,422,266.40 is: 170,108,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,988,986.40 : 388,427,492.40 = 113,422,266.40 : x
  2. Step 2: Convert to fraction form
    258,988,986.40/388,427,492.40 = 113,422,266.40/x
  3. Step 3: Cross multiply
    258,988,986.40x = 388,427,492.40 × 113,422,266.40
  4. Step 4: Simplify right side
    258,988,986.40x = 44,056,326,520,076,776
  5. Step 5: Solve for x
    x = 44,056,326,520,076,776/258,988,986.40
  6. Step 6: Final answer
    x = 170,108,880.43

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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.