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Finding the Fourth Proportional to 290,328,009.60, 435,492,014.40 and 290,328,009.60

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Solution

The fourth proportional to 290,328,009.60, 435,492,014.40 and 290,328,009.60 is: 435,492,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,328,009.60 : 435,492,014.40 = 290,328,009.60 : x
  2. Step 2: Convert to fraction form
    290,328,009.60/435,492,014.40 = 290,328,009.60/x
  3. Step 3: Cross multiply
    290,328,009.60x = 435,492,014.40 × 290,328,009.60
  4. Step 4: Simplify right side
    290,328,009.60x = 126,435,529,737,446,544
  5. Step 5: Solve for x
    x = 126,435,529,737,446,544/290,328,009.60
  6. Step 6: Final answer
    x = 435,492,014.40

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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.