Finding the Fourth Proportional to 1,553,228,164.09, 2,329,850,956.61 and 518,086,203.31
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Solution
The fourth proportional to 1,553,228,164.09, 2,329,850,956.61 and 518,086,203.31 is: 777,132,210.38
Step by Step Solution
- Step 1: Write the proportion equation
1,553,228,164.09 : 2,329,850,956.61 = 518,086,203.31 : x - Step 2: Convert to fraction form
1,553,228,164.09/2,329,850,956.61 = 518,086,203.31/x - Step 3: Cross multiply
1,553,228,164.09x = 2,329,850,956.61 × 518,086,203.31 - Step 4: Simplify right side
1,553,228,164.09x = 1,207,063,636,388,246,528 - Step 5: Solve for x
x = 1,207,063,636,388,246,528/1,553,228,164.09 - Step 6: Final answer
x = 777,132,210.38
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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.