Finding the Fourth Proportional to 914,689,774.80, 1,372,034,662.20 and 527,706,248.40
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Solution
The fourth proportional to 914,689,774.80, 1,372,034,662.20 and 527,706,248.40 is: 791,559,372.60
Step by Step Solution
- Step 1: Write the proportion equation
914,689,774.80 : 1,372,034,662.20 = 527,706,248.40 : x - Step 2: Convert to fraction form
914,689,774.80/1,372,034,662.20 = 527,706,248.40/x - Step 3: Cross multiply
914,689,774.80x = 1,372,034,662.20 × 527,706,248.40 - Step 4: Simplify right side
914,689,774.80x = 724,031,264,264,323,328 - Step 5: Solve for x
x = 724,031,264,264,323,328/914,689,774.80 - Step 6: Final answer
x = 791,559,372.60
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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.