Finding the Fourth Proportional to 977,186,635.40, 1,465,779,953.10 and 870,048,129.80
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Solution
The fourth proportional to 977,186,635.40, 1,465,779,953.10 and 870,048,129.80 is: 1,305,072,194.70
Step by Step Solution
- Step 1: Write the proportion equation
977,186,635.40 : 1,465,779,953.10 = 870,048,129.80 : x - Step 2: Convert to fraction form
977,186,635.40/1,465,779,953.10 = 870,048,129.80/x - Step 3: Cross multiply
977,186,635.40x = 1,465,779,953.10 × 870,048,129.80 - Step 4: Simplify right side
977,186,635.40x = 1,275,299,106,892,986,624 - Step 5: Solve for x
x = 1,275,299,106,892,986,624/977,186,635.40 - Step 6: Final answer
x = 1,305,072,194.70
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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.