Home / 286,637,188.01-429,951,461.31-128,958,849.02

Finding the Fourth Proportional to 286,637,188.01, 429,951,461.31 and 128,958,849.02

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Solution

The fourth proportional to 286,637,188.01, 429,951,461.31 and 128,958,849.02 is: 193,436,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,637,188.01 : 429,951,461.31 = 128,958,849.02 : x
  2. Step 2: Convert to fraction form
    286,637,188.01/429,951,461.31 = 128,958,849.02/x
  3. Step 3: Cross multiply
    286,637,188.01x = 429,951,461.31 × 128,958,849.02
  4. Step 4: Simplify right side
    286,637,188.01x = 55,446,045,582,854,904
  5. Step 5: Solve for x
    x = 55,446,045,582,854,904/286,637,188.01
  6. Step 6: Final answer
    x = 193,436,329.63

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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.