Finding the Fourth Proportional to 877,562,972.70, 1,316,344,459.05 and 295,103,636.70
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Solution
The fourth proportional to 877,562,972.70, 1,316,344,459.05 and 295,103,636.70 is: 442,655,455.05
Step by Step Solution
- Step 1: Write the proportion equation
877,562,972.70 : 1,316,344,459.05 = 295,103,636.70 : x - Step 2: Convert to fraction form
877,562,972.70/1,316,344,459.05 = 295,103,636.70/x - Step 3: Cross multiply
877,562,972.70x = 1,316,344,459.05 × 295,103,636.70 - Step 4: Simplify right side
877,562,972.70x = 388,458,037,015,549,184 - Step 5: Solve for x
x = 388,458,037,015,549,184/877,562,972.70 - Step 6: Final answer
x = 442,655,455.05
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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.