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Finding the Fourth Proportional to 303,363,807.20, 455,045,710.80 and 294,860,751.20

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Solution

The fourth proportional to 303,363,807.20, 455,045,710.80 and 294,860,751.20 is: 442,291,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,363,807.20 : 455,045,710.80 = 294,860,751.20 : x
  2. Step 2: Convert to fraction form
    303,363,807.20/455,045,710.80 = 294,860,751.20/x
  3. Step 3: Cross multiply
    303,363,807.20x = 455,045,710.80 × 294,860,751.20
  4. Step 4: Simplify right side
    303,363,807.20x = 134,175,120,116,825,952
  5. Step 5: Solve for x
    x = 134,175,120,116,825,952/303,363,807.20
  6. Step 6: Final answer
    x = 442,291,126.80

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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.