Finding the Fourth Proportional to 930,097,964.40, 1,395,146,946.60 and 413,537,312.40
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Solution
The fourth proportional to 930,097,964.40, 1,395,146,946.60 and 413,537,312.40 is: 620,305,968.60
Step by Step Solution
- Step 1: Write the proportion equation
930,097,964.40 : 1,395,146,946.60 = 413,537,312.40 : x - Step 2: Convert to fraction form
930,097,964.40/1,395,146,946.60 = 413,537,312.40/x - Step 3: Cross multiply
930,097,964.40x = 1,395,146,946.60 × 413,537,312.40 - Step 4: Simplify right side
930,097,964.40x = 576,945,318,700,030,208 - Step 5: Solve for x
x = 576,945,318,700,030,208/930,097,964.40 - Step 6: Final answer
x = 620,305,968.60
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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.