Finding the Fourth Proportional to 1,043,281,251.10, 1,564,921,876.65 and 559,551,843.10
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Solution
The fourth proportional to 1,043,281,251.10, 1,564,921,876.65 and 559,551,843.10 is: 839,327,764.65
Step by Step Solution
- Step 1: Write the proportion equation
1,043,281,251.10 : 1,564,921,876.65 = 559,551,843.10 : x - Step 2: Convert to fraction form
1,043,281,251.10/1,564,921,876.65 = 559,551,843.10/x - Step 3: Cross multiply
1,043,281,251.10x = 1,564,921,876.65 × 559,551,843.10 - Step 4: Simplify right side
1,043,281,251.10x = 875,654,920,387,018,496 - Step 5: Solve for x
x = 875,654,920,387,018,496/1,043,281,251.10 - Step 6: Final answer
x = 839,327,764.65
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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.