Home / 1,641,185,999.70-2,461,778,999.55-492,328,655.70

Finding the Fourth Proportional to 1,641,185,999.70, 2,461,778,999.55 and 492,328,655.70

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Solution

The fourth proportional to 1,641,185,999.70, 2,461,778,999.55 and 492,328,655.70 is: 738,492,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641,185,999.70 : 2,461,778,999.55 = 492,328,655.70 : x
  2. Step 2: Convert to fraction form
    1,641,185,999.70/2,461,778,999.55 = 492,328,655.70/x
  3. Step 3: Cross multiply
    1,641,185,999.70x = 2,461,778,999.55 × 492,328,655.70
  4. Step 4: Simplify right side
    1,641,185,999.70x = 1,212,004,345,478,942,464
  5. Step 5: Solve for x
    x = 1,212,004,345,478,942,464/1,641,185,999.70
  6. Step 6: Final answer
    x = 738,492,983.55

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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.