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Finding the Fourth Proportional to 84,731,403.60, 127,097,105.40 and 84,731,403.60

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Solution

The fourth proportional to 84,731,403.60, 127,097,105.40 and 84,731,403.60 is: 127,097,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,731,403.60 : 127,097,105.40 = 84,731,403.60 : x
  2. Step 2: Convert to fraction form
    84,731,403.60/127,097,105.40 = 84,731,403.60/x
  3. Step 3: Cross multiply
    84,731,403.60x = 127,097,105.40 × 84,731,403.60
  4. Step 4: Simplify right side
    84,731,403.60x = 10,769,116,134,039,140
  5. Step 5: Solve for x
    x = 10,769,116,134,039,140/84,731,403.60
  6. Step 6: Final answer
    x = 127,097,105.40

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1.5x scale

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.