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Finding the Fourth Proportional to 398,581,211.70, 597,871,817.55 and 362,230,647.30

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Solution

The fourth proportional to 398,581,211.70, 597,871,817.55 and 362,230,647.30 is: 543,345,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,581,211.70 : 597,871,817.55 = 362,230,647.30 : x
  2. Step 2: Convert to fraction form
    398,581,211.70/597,871,817.55 = 362,230,647.30/x
  3. Step 3: Cross multiply
    398,581,211.70x = 597,871,817.55 × 362,230,647.30
  4. Step 4: Simplify right side
    398,581,211.70x = 216,567,495,473,564,000
  5. Step 5: Solve for x
    x = 216,567,495,473,564,000/398,581,211.70
  6. Step 6: Final answer
    x = 543,345,970.95

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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.