Home / 253,027,331.15-379,592,762.40-87,009,274.54

Finding the Fourth Proportional to 253,027,331.15, 379,592,762.40 and 87,009,274.54

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Solution

The fourth proportional to 253,027,331.15, 379,592,762.40 and 87,009,274.54 is: 130,531,712.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,027,331.15 : 379,592,762.40 = 87,009,274.54 : x
  2. Step 2: Convert to fraction form
    253,027,331.15/379,592,762.40 = 87,009,274.54/x
  3. Step 3: Cross multiply
    253,027,331.15x = 379,592,762.40 × 87,009,274.54
  4. Step 4: Simplify right side
    253,027,331.15x = 33,028,090,877,533,080
  5. Step 5: Solve for x
    x = 33,028,090,877,533,080/253,027,331.15
  6. Step 6: Final answer
    x = 130,531,712.63

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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.