Finding the Fourth Proportional to 1,036,644,552.40, 1,554,966,828.60 and 346,462,125.70
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Solution
The fourth proportional to 1,036,644,552.40, 1,554,966,828.60 and 346,462,125.70 is: 519,693,188.55
Step by Step Solution
- Step 1: Write the proportion equation
1,036,644,552.40 : 1,554,966,828.60 = 346,462,125.70 : x - Step 2: Convert to fraction form
1,036,644,552.40/1,554,966,828.60 = 346,462,125.70/x - Step 3: Cross multiply
1,036,644,552.40x = 1,554,966,828.60 × 346,462,125.70 - Step 4: Simplify right side
1,036,644,552.40x = 538,737,112,829,743,488 - Step 5: Solve for x
x = 538,737,112,829,743,488/1,036,644,552.40 - Step 6: Final answer
x = 519,693,188.55
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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.