Home / 70,739,421.94-106,109,126.40-19,621,442.98

Finding the Fourth Proportional to 70,739,421.94, 106,109,126.40 and 19,621,442.98

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Solution

The fourth proportional to 70,739,421.94, 106,109,126.40 and 19,621,442.98 is: 29,432,162.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739,421.94 : 106,109,126.40 = 19,621,442.98 : x
  2. Step 2: Convert to fraction form
    70,739,421.94/106,109,126.40 = 19,621,442.98/x
  3. Step 3: Cross multiply
    70,739,421.94x = 106,109,126.40 × 19,621,442.98
  4. Step 4: Simplify right side
    70,739,421.94x = 2,082,014,173,315,212.75
  5. Step 5: Solve for x
    x = 2,082,014,173,315,212.75/70,739,421.94
  6. Step 6: Final answer
    x = 29,432,162.66

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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.