Home / 280,056,596.40-420,084,894.60-177,893,953.20

Finding the Fourth Proportional to 280,056,596.40, 420,084,894.60 and 177,893,953.20

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Solution

The fourth proportional to 280,056,596.40, 420,084,894.60 and 177,893,953.20 is: 266,840,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,056,596.40 : 420,084,894.60 = 177,893,953.20 : x
  2. Step 2: Convert to fraction form
    280,056,596.40/420,084,894.60 = 177,893,953.20/x
  3. Step 3: Cross multiply
    280,056,596.40x = 420,084,894.60 × 177,893,953.20
  4. Step 4: Simplify right side
    280,056,596.40x = 74,730,562,579,999,328
  5. Step 5: Solve for x
    x = 74,730,562,579,999,328/280,056,596.40
  6. Step 6: Final answer
    x = 266,840,929.80

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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.