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Finding the Fourth Proportional to 243,579,403.80, 365,369,105.70 and 120,710,244.60

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Solution

The fourth proportional to 243,579,403.80, 365,369,105.70 and 120,710,244.60 is: 181,065,366.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,579,403.80 : 365,369,105.70 = 120,710,244.60 : x
  2. Step 2: Convert to fraction form
    243,579,403.80/365,369,105.70 = 120,710,244.60/x
  3. Step 3: Cross multiply
    243,579,403.80x = 365,369,105.70 × 120,710,244.60
  4. Step 4: Simplify right side
    243,579,403.80x = 44,103,794,118,330,248
  5. Step 5: Solve for x
    x = 44,103,794,118,330,248/243,579,403.80
  6. Step 6: Final answer
    x = 181,065,366.90

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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.