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Finding the Fourth Proportional to 559,872,002.20, 839,808,003.30 and 287,270,325.40

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Solution

The fourth proportional to 559,872,002.20, 839,808,003.30 and 287,270,325.40 is: 430,905,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,002.20 : 839,808,003.30 = 287,270,325.40 : x
  2. Step 2: Convert to fraction form
    559,872,002.20/839,808,003.30 = 287,270,325.40/x
  3. Step 3: Cross multiply
    559,872,002.20x = 839,808,003.30 × 287,270,325.40
  4. Step 4: Simplify right side
    559,872,002.20x = 241,251,918,381,515,232
  5. Step 5: Solve for x
    x = 241,251,918,381,515,232/559,872,002.20
  6. Step 6: Final answer
    x = 430,905,488.10

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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.