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Finding the Fourth Proportional to 291,353,008.70, 437,029,513.05 and 291,353,008.70

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Solution

The fourth proportional to 291,353,008.70, 437,029,513.05 and 291,353,008.70 is: 437,029,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,353,008.70 : 437,029,513.05 = 291,353,008.70 : x
  2. Step 2: Convert to fraction form
    291,353,008.70/437,029,513.05 = 291,353,008.70/x
  3. Step 3: Cross multiply
    291,353,008.70x = 437,029,513.05 × 291,353,008.70
  4. Step 4: Simplify right side
    291,353,008.70x = 127,329,863,517,813,408
  5. Step 5: Solve for x
    x = 127,329,863,517,813,408/291,353,008.70
  6. Step 6: Final answer
    x = 437,029,513.05

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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.