Finding the Fourth Proportional to 86,490,916.74, 119,357,387.26 and 48,822,011.28
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Solution
The fourth proportional to 86,490,916.74, 119,357,387.26 and 48,822,011.28 is: 67,374,331.63
Step by Step Solution
- Step 1: Write the proportion equation
86,490,916.74 : 119,357,387.26 = 48,822,011.28 : x - Step 2: Convert to fraction form
86,490,916.74/119,357,387.26 = 48,822,011.28/x - Step 3: Cross multiply
86,490,916.74x = 119,357,387.26 × 48,822,011.28 - Step 4: Simplify right side
86,490,916.74x = 5,827,267,707,159,049 - Step 5: Solve for x
x = 5,827,267,707,159,049/86,490,916.74 - Step 6: Final answer
x = 67,374,331.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.