Home / 285,131,954.07-427,877,848.98-121,369,449.15

Finding the Fourth Proportional to 285,131,954.07, 427,877,848.98 and 121,369,449.15

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Solution

The fourth proportional to 285,131,954.07, 427,877,848.98 and 121,369,449.15 is: 182,130,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,131,954.07 : 427,877,848.98 = 121,369,449.15 : x
  2. Step 2: Convert to fraction form
    285,131,954.07/427,877,848.98 = 121,369,449.15/x
  3. Step 3: Cross multiply
    285,131,954.07x = 427,877,848.98 × 121,369,449.15
  4. Step 4: Simplify right side
    285,131,954.07x = 51,931,298,834,189,496
  5. Step 5: Solve for x
    x = 51,931,298,834,189,496/285,131,954.07
  6. Step 6: Final answer
    x = 182,130,757.68

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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.