Home / 401,314,927.60-601,972,391.40-285,088,780.90

Finding the Fourth Proportional to 401,314,927.60, 601,972,391.40 and 285,088,780.90

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Solution

The fourth proportional to 401,314,927.60, 601,972,391.40 and 285,088,780.90 is: 427,633,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,314,927.60 : 601,972,391.40 = 285,088,780.90 : x
  2. Step 2: Convert to fraction form
    401,314,927.60/601,972,391.40 = 285,088,780.90/x
  3. Step 3: Cross multiply
    401,314,927.60x = 601,972,391.40 × 285,088,780.90
  4. Step 4: Simplify right side
    401,314,927.60x = 171,615,575,199,683,616
  5. Step 5: Solve for x
    x = 171,615,575,199,683,616/401,314,927.60
  6. Step 6: Final answer
    x = 427,633,171.35

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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.