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Finding the Fourth Proportional to 141,878,420.40, 212,817,630.60 and 141,878,420.40

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Solution

The fourth proportional to 141,878,420.40, 212,817,630.60 and 141,878,420.40 is: 212,817,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,878,420.40 : 212,817,630.60 = 141,878,420.40 : x
  2. Step 2: Convert to fraction form
    141,878,420.40/212,817,630.60 = 141,878,420.40/x
  3. Step 3: Cross multiply
    141,878,420.40x = 212,817,630.60 × 141,878,420.40
  4. Step 4: Simplify right side
    141,878,420.40x = 30,194,229,262,798,704
  5. Step 5: Solve for x
    x = 30,194,229,262,798,704/141,878,420.40
  6. Step 6: Final answer
    x = 212,817,630.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.