Finding the Fourth Proportional to 805,536,193.30, 1,208,304,289.95 and 714,762,279.70
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Solution
The fourth proportional to 805,536,193.30, 1,208,304,289.95 and 714,762,279.70 is: 1,072,143,419.55
Step by Step Solution
- Step 1: Write the proportion equation
805,536,193.30 : 1,208,304,289.95 = 714,762,279.70 : x - Step 2: Convert to fraction form
805,536,193.30/1,208,304,289.95 = 714,762,279.70/x - Step 3: Cross multiply
805,536,193.30x = 1,208,304,289.95 × 714,762,279.70 - Step 4: Simplify right side
805,536,193.30x = 863,650,328,855,951,872 - Step 5: Solve for x
x = 863,650,328,855,951,872/805,536,193.30 - Step 6: Final answer
x = 1,072,143,419.55
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Double scale
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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.