Home / 142,130,408.86-196,136,350.73-79,406,977.96

Finding the Fourth Proportional to 142,130,408.86, 196,136,350.73 and 79,406,977.96

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Solution

The fourth proportional to 142,130,408.86, 196,136,350.73 and 79,406,977.96 is: 109,579,610.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,130,408.86 : 196,136,350.73 = 79,406,977.96 : x
  2. Step 2: Convert to fraction form
    142,130,408.86/196,136,350.73 = 79,406,977.96/x
  3. Step 3: Cross multiply
    142,130,408.86x = 196,136,350.73 × 79,406,977.96
  4. Step 4: Simplify right side
    142,130,408.86x = 15,574,594,879,717,852
  5. Step 5: Solve for x
    x = 15,574,594,879,717,852/142,130,408.86
  6. Step 6: Final answer
    x = 109,579,610.76

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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.