Home / 517,520,129.60-776,056,245.60-210,710,273.60

Finding the Fourth Proportional to 517,520,129.60, 776,056,245.60 and 210,710,273.60

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Solution

The fourth proportional to 517,520,129.60, 776,056,245.60 and 210,710,273.60 is: 315,974,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,520,129.60 : 776,056,245.60 = 210,710,273.60 : x
  2. Step 2: Convert to fraction form
    517,520,129.60/776,056,245.60 = 210,710,273.60/x
  3. Step 3: Cross multiply
    517,520,129.60x = 776,056,245.60 × 210,710,273.60
  4. Step 4: Simplify right side
    517,520,129.60x = 163,523,023,839,364,800
  5. Step 5: Solve for x
    x = 163,523,023,839,364,800/517,520,129.60
  6. Step 6: Final answer
    x = 315,974,228.80

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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.