Home / 258,982,636.40-388,417,967.40-113,415,916.40

Finding the Fourth Proportional to 258,982,636.40, 388,417,967.40 and 113,415,916.40

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Solution

The fourth proportional to 258,982,636.40, 388,417,967.40 and 113,415,916.40 is: 170,099,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,982,636.40 : 388,417,967.40 = 113,415,916.40 : x
  2. Step 2: Convert to fraction form
    258,982,636.40/388,417,967.40 = 113,415,916.40/x
  3. Step 3: Cross multiply
    258,982,636.40x = 388,417,967.40 × 113,415,916.40
  4. Step 4: Simplify right side
    258,982,636.40x = 44,052,779,718,896,328
  5. Step 5: Solve for x
    x = 44,052,779,718,896,328/258,982,636.40
  6. Step 6: Final answer
    x = 170,099,356.20

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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.