Finding the Fourth Proportional to 1,046,592,018.70, 1,569,888,028.05 and 319,486,252.30
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Solution
The fourth proportional to 1,046,592,018.70, 1,569,888,028.05 and 319,486,252.30 is: 479,229,378.45
Step by Step Solution
- Step 1: Write the proportion equation
1,046,592,018.70 : 1,569,888,028.05 = 319,486,252.30 : x - Step 2: Convert to fraction form
1,046,592,018.70/1,569,888,028.05 = 319,486,252.30/x - Step 3: Cross multiply
1,046,592,018.70x = 1,569,888,028.05 × 319,486,252.30 - Step 4: Simplify right side
1,046,592,018.70x = 501,557,642,612,331,776 - Step 5: Solve for x
x = 501,557,642,612,331,776/1,046,592,018.70 - Step 6: Final answer
x = 479,229,378.45
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Double scale
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Similar ratio
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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.