Finding the Fourth Proportional to 289,514,036.71, 399,533,416.68 and 157,354,993.63
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Solution
The fourth proportional to 289,514,036.71, 399,533,416.68 and 157,354,993.63 is: 217,152,090.28
Step by Step Solution
- Step 1: Write the proportion equation
289,514,036.71 : 399,533,416.68 = 157,354,993.63 : x - Step 2: Convert to fraction form
289,514,036.71/399,533,416.68 = 157,354,993.63/x - Step 3: Cross multiply
289,514,036.71x = 399,533,416.68 × 157,354,993.63 - Step 4: Simplify right side
289,514,036.71x = 62,868,578,236,653,536 - Step 5: Solve for x
x = 62,868,578,236,653,536/289,514,036.71 - Step 6: Final answer
x = 217,152,090.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.