Finding the Fourth Proportional to 298,926,901.80, 448,390,352.70 and 137,683,765.80
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Solution
The fourth proportional to 298,926,901.80, 448,390,352.70 and 137,683,765.80 is: 206,525,648.70
Step by Step Solution
- Step 1: Write the proportion equation
298,926,901.80 : 448,390,352.70 = 137,683,765.80 : x - Step 2: Convert to fraction form
298,926,901.80/448,390,352.70 = 137,683,765.80/x - Step 3: Cross multiply
298,926,901.80x = 448,390,352.70 × 137,683,765.80 - Step 4: Simplify right side
298,926,901.80x = 61,736,072,308,126,200 - Step 5: Solve for x
x = 61,736,072,308,126,200/298,926,901.80 - Step 6: Final answer
x = 206,525,648.70
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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.