Home / 205,826,853.60-308,740,280.40-84,618,021.60

Finding the Fourth Proportional to 205,826,853.60, 308,740,280.40 and 84,618,021.60

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Solution

The fourth proportional to 205,826,853.60, 308,740,280.40 and 84,618,021.60 is: 126,927,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,826,853.60 : 308,740,280.40 = 84,618,021.60 : x
  2. Step 2: Convert to fraction form
    205,826,853.60/308,740,280.40 = 84,618,021.60/x
  3. Step 3: Cross multiply
    205,826,853.60x = 308,740,280.40 × 84,618,021.60
  4. Step 4: Simplify right side
    205,826,853.60x = 26,124,991,715,677,252
  5. Step 5: Solve for x
    x = 26,124,991,715,677,252/205,826,853.60
  6. Step 6: Final answer
    x = 126,927,032.40

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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.