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Finding the Fourth Proportional to 1,251,505,541.60, 1,755,735,728.80 and 1,251,505,541.60

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Solution

The fourth proportional to 1,251,505,541.60, 1,755,735,728.80 and 1,251,505,541.60 is: 1,755,735,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,505,541.60 : 1,755,735,728.80 = 1,251,505,541.60 : x
  2. Step 2: Convert to fraction form
    1,251,505,541.60/1,755,735,728.80 = 1,251,505,541.60/x
  3. Step 3: Cross multiply
    1,251,505,541.60x = 1,755,735,728.80 × 1,251,505,541.60
  4. Step 4: Simplify right side
    1,251,505,541.60x = 2,197,312,994,178,314,496
  5. Step 5: Solve for x
    x = 2,197,312,994,178,314,496/1,251,505,541.60
  6. Step 6: Final answer
    x = 1,755,735,728.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.