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Finding the Fourth Proportional to 141,920,403.60, 212,880,605.40 and 141,920,403.60

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Solution

The fourth proportional to 141,920,403.60, 212,880,605.40 and 141,920,403.60 is: 212,880,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,920,403.60 : 212,880,605.40 = 141,920,403.60 : x
  2. Step 2: Convert to fraction form
    141,920,403.60/212,880,605.40 = 141,920,403.60/x
  3. Step 3: Cross multiply
    141,920,403.60x = 212,880,605.40 × 141,920,403.60
  4. Step 4: Simplify right side
    141,920,403.60x = 30,212,101,436,980,340
  5. Step 5: Solve for x
    x = 30,212,101,436,980,340/141,920,403.60
  6. Step 6: Final answer
    x = 212,880,605.40

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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.