Home / 287,490,848.80-431,236,273.20-134,435,840.80

Finding the Fourth Proportional to 287,490,848.80, 431,236,273.20 and 134,435,840.80

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Solution

The fourth proportional to 287,490,848.80, 431,236,273.20 and 134,435,840.80 is: 201,653,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,490,848.80 : 431,236,273.20 = 134,435,840.80 : x
  2. Step 2: Convert to fraction form
    287,490,848.80/431,236,273.20 = 134,435,840.80/x
  3. Step 3: Cross multiply
    287,490,848.80x = 431,236,273.20 × 134,435,840.80
  4. Step 4: Simplify right side
    287,490,848.80x = 57,973,610,971,100,512
  5. Step 5: Solve for x
    x = 57,973,610,971,100,512/287,490,848.80
  6. Step 6: Final answer
    x = 201,653,761.20

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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.