Finding the Fourth Proportional to 2,018,845,501.30, 3,028,268,251.95 and 930,454,333.30
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Solution
The fourth proportional to 2,018,845,501.30, 3,028,268,251.95 and 930,454,333.30 is: 1,395,681,499.95
Step by Step Solution
- Step 1: Write the proportion equation
2,018,845,501.30 : 3,028,268,251.95 = 930,454,333.30 : x - Step 2: Convert to fraction form
2,018,845,501.30/3,028,268,251.95 = 930,454,333.30/x - Step 3: Cross multiply
2,018,845,501.30x = 3,028,268,251.95 × 930,454,333.30 - Step 4: Simplify right side
2,018,845,501.30x = 2,817,665,317,421,693,440 - Step 5: Solve for x
x = 2,817,665,317,421,693,440/2,018,845,501.30 - Step 6: Final answer
x = 1,395,681,499.95
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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.