Finding the Fourth Proportional to 766,626,901.36, 1,058,817,799.02 and 515,294,948.42
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Solution
The fourth proportional to 766,626,901.36, 1,058,817,799.02 and 515,294,948.42 is: 711,693,605.02
Step by Step Solution
- Step 1: Write the proportion equation
766,626,901.36 : 1,058,817,799.02 = 515,294,948.42 : x - Step 2: Convert to fraction form
766,626,901.36/1,058,817,799.02 = 515,294,948.42/x - Step 3: Cross multiply
766,626,901.36x = 1,058,817,799.02 × 515,294,948.42 - Step 4: Simplify right side
766,626,901.36x = 545,603,463,132,188,864 - Step 5: Solve for x
x = 545,603,463,132,188,864/766,626,901.36 - Step 6: Final answer
x = 711,693,605.02
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Double scale
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Similar ratio
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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.