Home / 303,371,307.20-455,056,960.80-300,347,998.40

Finding the Fourth Proportional to 303,371,307.20, 455,056,960.80 and 300,347,998.40

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Solution

The fourth proportional to 303,371,307.20, 455,056,960.80 and 300,347,998.40 is: 450,521,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,371,307.20 : 455,056,960.80 = 300,347,998.40 : x
  2. Step 2: Convert to fraction form
    303,371,307.20/455,056,960.80 = 300,347,998.40/x
  3. Step 3: Cross multiply
    303,371,307.20x = 455,056,960.80 × 300,347,998.40
  4. Step 4: Simplify right side
    303,371,307.20x = 136,675,447,334,267,248
  5. Step 5: Solve for x
    x = 136,675,447,334,267,248/303,371,307.20
  6. Step 6: Final answer
    x = 450,521,997.60

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1.5x scale

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.