Home / 386,731,848.35-533,690,008.30-210,521,181.42

Finding the Fourth Proportional to 386,731,848.35, 533,690,008.30 and 210,521,181.42

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Solution

The fourth proportional to 386,731,848.35, 533,690,008.30 and 210,521,181.42 is: 290,519,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,731,848.35 : 533,690,008.30 = 210,521,181.42 : x
  2. Step 2: Convert to fraction form
    386,731,848.35/533,690,008.30 = 210,521,181.42/x
  3. Step 3: Cross multiply
    386,731,848.35x = 533,690,008.30 × 210,521,181.42
  4. Step 4: Simplify right side
    386,731,848.35x = 112,353,051,059,365,600
  5. Step 5: Solve for x
    x = 112,353,051,059,365,600/386,731,848.35
  6. Step 6: Final answer
    x = 290,519,261.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.