Home / 1,280,950,648.82-1,921,688,037.02-440,484,237.80

Finding the Fourth Proportional to 1,280,950,648.82, 1,921,688,037.02 and 440,484,237.80

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Solution

The fourth proportional to 1,280,950,648.82, 1,921,688,037.02 and 440,484,237.80 is: 660,816,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,950,648.82 : 1,921,688,037.02 = 440,484,237.80 : x
  2. Step 2: Convert to fraction form
    1,280,950,648.82/1,921,688,037.02 = 440,484,237.80/x
  3. Step 3: Cross multiply
    1,280,950,648.82x = 1,921,688,037.02 × 440,484,237.80
  4. Step 4: Simplify right side
    1,280,950,648.82x = 846,473,290,264,322,048
  5. Step 5: Solve for x
    x = 846,473,290,264,322,048/1,280,950,648.82
  6. Step 6: Final answer
    x = 660,816,473.33

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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.