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Finding the Fourth Proportional to 298,991,712.90, 448,487,569.50 and 298,991,712.90

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Solution

The fourth proportional to 298,991,712.90, 448,487,569.50 and 298,991,712.90 is: 448,487,569.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,991,712.90 : 448,487,569.50 = 298,991,712.90 : x
  2. Step 2: Convert to fraction form
    298,991,712.90/448,487,569.50 = 298,991,712.90/x
  3. Step 3: Cross multiply
    298,991,712.90x = 448,487,569.50 × 298,991,712.90
  4. Step 4: Simplify right side
    298,991,712.90x = 134,094,066,619,162,784
  5. Step 5: Solve for x
    x = 134,094,066,619,162,784/298,991,712.90
  6. Step 6: Final answer
    x = 448,487,569.50

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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.