Home / 154,557,280.98-213,294,162.87-84,945,129.30

Finding the Fourth Proportional to 154,557,280.98, 213,294,162.87 and 84,945,129.30

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Solution

The fourth proportional to 154,557,280.98, 213,294,162.87 and 84,945,129.30 is: 117,227,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557,280.98 : 213,294,162.87 = 84,945,129.30 : x
  2. Step 2: Convert to fraction form
    154,557,280.98/213,294,162.87 = 84,945,129.30/x
  3. Step 3: Cross multiply
    154,557,280.98x = 213,294,162.87 × 84,945,129.30
  4. Step 4: Simplify right side
    154,557,280.98x = 18,118,300,243,927,408
  5. Step 5: Solve for x
    x = 18,118,300,243,927,408/154,557,280.98
  6. Step 6: Final answer
    x = 117,227,089.72

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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.