Home / 751,565,912.34-1,126,980,041.82-308,828,385.78

Finding the Fourth Proportional to 751,565,912.34, 1,126,980,041.82 and 308,828,385.78

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Solution

The fourth proportional to 751,565,912.34, 1,126,980,041.82 and 308,828,385.78 is: 463,091,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,565,912.34 : 1,126,980,041.82 = 308,828,385.78 : x
  2. Step 2: Convert to fraction form
    751,565,912.34/1,126,980,041.82 = 308,828,385.78/x
  3. Step 3: Cross multiply
    751,565,912.34x = 1,126,980,041.82 × 308,828,385.78
  4. Step 4: Simplify right side
    751,565,912.34x = 348,043,427,121,547,456
  5. Step 5: Solve for x
    x = 348,043,427,121,547,456/751,565,912.34
  6. Step 6: Final answer
    x = 463,091,022.90

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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.