Finding the Fourth Proportional to 826,809,616.40, 1,240,214,424.60 and 736,411,502.30
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Solution
The fourth proportional to 826,809,616.40, 1,240,214,424.60 and 736,411,502.30 is: 1,104,617,253.45
Step by Step Solution
- Step 1: Write the proportion equation
826,809,616.40 : 1,240,214,424.60 = 736,411,502.30 : x - Step 2: Convert to fraction form
826,809,616.40/1,240,214,424.60 = 736,411,502.30/x - Step 3: Cross multiply
826,809,616.40x = 1,240,214,424.60 × 736,411,502.30 - Step 4: Simplify right side
826,809,616.40x = 913,308,167,593,815,936 - Step 5: Solve for x
x = 913,308,167,593,815,936/826,809,616.40 - Step 6: Final answer
x = 1,104,617,253.45
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.