Finding the Fourth Proportional to 139,968,018.80, 195,501,730 and 139,968,018.80
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Solution
The fourth proportional to 139,968,018.80, 195,501,730 and 139,968,018.80 is: 195,501,730
Step by Step Solution
- Step 1: Write the proportion equation
139,968,018.80 : 195,501,730 = 139,968,018.80 : x - Step 2: Convert to fraction form
139,968,018.80/195,501,730 = 139,968,018.80/x - Step 3: Cross multiply
139,968,018.80x = 195,501,730 × 139,968,018.80 - Step 4: Simplify right side
139,968,018.80x = 27,363,989,820,072,528 - Step 5: Solve for x
x = 27,363,989,820,072,528/139,968,018.80 - Step 6: Final answer
x = 195,501,730
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.