Finding the Fourth Proportional to 608,641,320.62, 839,854,163.51 and 340,731,823.46
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Solution
The fourth proportional to 608,641,320.62, 839,854,163.51 and 340,731,823.46 is: 470,170,247.86
Step by Step Solution
- Step 1: Write the proportion equation
608,641,320.62 : 839,854,163.51 = 340,731,823.46 : x - Step 2: Convert to fraction form
608,641,320.62/839,854,163.51 = 340,731,823.46/x - Step 3: Cross multiply
608,641,320.62x = 839,854,163.51 × 340,731,823.46 - Step 4: Simplify right side
608,641,320.62x = 286,165,040,571,531,616 - Step 5: Solve for x
x = 286,165,040,571,531,616/608,641,320.62 - Step 6: Final answer
x = 470,170,247.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.