Finding the Fourth Proportional to 139,968,220.05, 209,952,330.08 and 130,402,282.05
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Solution
The fourth proportional to 139,968,220.05, 209,952,330.08 and 130,402,282.05 is: 195,603,423.08
Step by Step Solution
- Step 1: Write the proportion equation
139,968,220.05 : 209,952,330.08 = 130,402,282.05 : x - Step 2: Convert to fraction form
139,968,220.05/209,952,330.08 = 130,402,282.05/x - Step 3: Cross multiply
139,968,220.05x = 209,952,330.08 × 130,402,282.05 - Step 4: Simplify right side
139,968,220.05x = 27,378,262,963,494,844 - Step 5: Solve for x
x = 27,378,262,963,494,844/139,968,220.05 - Step 6: Final answer
x = 195,603,423.08
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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.