Home / 5,220,230,637.72-7,830,133,601.45-1,289,837,819.46

Finding the Fourth Proportional to 5,220,230,637.72, 7,830,133,601.45 and 1,289,837,819.46

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Solution

The fourth proportional to 5,220,230,637.72, 7,830,133,601.45 and 1,289,837,819.46 is: 1,934,704,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220,230,637.72 : 7,830,133,601.45 = 1,289,837,819.46 : x
  2. Step 2: Convert to fraction form
    5,220,230,637.72/7,830,133,601.45 = 1,289,837,819.46/x
  3. Step 3: Cross multiply
    5,220,230,637.72x = 7,830,133,601.45 × 1,289,837,819.46
  4. Step 4: Simplify right side
    5,220,230,637.72x = 10,099,602,450,568,294,400
  5. Step 5: Solve for x
    x = 10,099,602,450,568,294,400/5,220,230,637.72
  6. Step 6: Final answer
    x = 1,934,704,259.54

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Double scale
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1.5x scale

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.