Home / 258,820,025.40-388,230,038.10-200,999,244.60

Finding the Fourth Proportional to 258,820,025.40, 388,230,038.10 and 200,999,244.60

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Solution

The fourth proportional to 258,820,025.40, 388,230,038.10 and 200,999,244.60 is: 301,498,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,820,025.40 : 388,230,038.10 = 200,999,244.60 : x
  2. Step 2: Convert to fraction form
    258,820,025.40/388,230,038.10 = 200,999,244.60/x
  3. Step 3: Cross multiply
    258,820,025.40x = 388,230,038.10 × 200,999,244.60
  4. Step 4: Simplify right side
    258,820,025.40x = 78,033,944,389,129,216
  5. Step 5: Solve for x
    x = 78,033,944,389,129,216/258,820,025.40
  6. Step 6: Final answer
    x = 301,498,866.90

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1.5x scale

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.