Home / 386,476,145.70-579,515,638.95-113,811,483.30

Finding the Fourth Proportional to 386,476,145.70, 579,515,638.95 and 113,811,483.30

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Solution

The fourth proportional to 386,476,145.70, 579,515,638.95 and 113,811,483.30 is: 170,658,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,476,145.70 : 579,515,638.95 = 113,811,483.30 : x
  2. Step 2: Convert to fraction form
    386,476,145.70/579,515,638.95 = 113,811,483.30/x
  3. Step 3: Cross multiply
    386,476,145.70x = 579,515,638.95 × 113,811,483.30
  4. Step 4: Simplify right side
    386,476,145.70x = 65,955,534,464,446,760
  5. Step 5: Solve for x
    x = 65,955,534,464,446,760/386,476,145.70
  6. Step 6: Final answer
    x = 170,658,746.21

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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.