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Finding the Fourth Proportional to 85,979,232,024.10, 128,968,848,036.15 and 85,979,232,024.10

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Solution

The fourth proportional to 85,979,232,024.10, 128,968,848,036.15 and 85,979,232,024.10 is: 128,968,848,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,979,232,024.10 : 128,968,848,036.15 = 85,979,232,024.10 : x
  2. Step 2: Convert to fraction form
    85,979,232,024.10/128,968,848,036.15 = 85,979,232,024.10/x
  3. Step 3: Cross multiply
    85,979,232,024.10x = 128,968,848,036.15 × 85,979,232,024.10
  4. Step 4: Simplify right side
    85,979,232,024.10x = 11,088,642,509,181,034,692,608
  5. Step 5: Solve for x
    x = 11,088,642,509,181,034,692,608/85,979,232,024.10
  6. Step 6: Final answer
    x = 128,968,848,036.15

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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.