Home / 519,556,919.07-779,328,875.75-126,087,004.61

Finding the Fourth Proportional to 519,556,919.07, 779,328,875.75 and 126,087,004.61

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Solution

The fourth proportional to 519,556,919.07, 779,328,875.75 and 126,087,004.61 is: 189,128,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,556,919.07 : 779,328,875.75 = 126,087,004.61 : x
  2. Step 2: Convert to fraction form
    519,556,919.07/779,328,875.75 = 126,087,004.61/x
  3. Step 3: Cross multiply
    519,556,919.07x = 779,328,875.75 × 126,087,004.61
  4. Step 4: Simplify right side
    519,556,919.07x = 98,263,243,544,869,296
  5. Step 5: Solve for x
    x = 98,263,243,544,869,296/519,556,919.07
  6. Step 6: Final answer
    x = 189,128,928.78

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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.