Finding the Fourth Proportional to 977,181,294.80, 1,348,519,214.36 and 531,145,707.62
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Solution
The fourth proportional to 977,181,294.80, 1,348,519,214.36 and 531,145,707.62 is: 732,985,983.41
Step by Step Solution
- Step 1: Write the proportion equation
977,181,294.80 : 1,348,519,214.36 = 531,145,707.62 : x - Step 2: Convert to fraction form
977,181,294.80/1,348,519,214.36 = 531,145,707.62/x - Step 3: Cross multiply
977,181,294.80x = 1,348,519,214.36 × 531,145,707.62 - Step 4: Simplify right side
977,181,294.80x = 716,260,192,344,993,920 - Step 5: Solve for x
x = 716,260,192,344,993,920/977,181,294.80 - Step 6: Final answer
x = 732,985,983.41
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1.5x scale
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.