Finding the Fourth Proportional to 197,643,493.08, 272,748,045.87 and 109,543,178.52
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Solution
The fourth proportional to 197,643,493.08, 272,748,045.87 and 109,543,178.52 is: 151,169,600.45
Step by Step Solution
- Step 1: Write the proportion equation
197,643,493.08 : 272,748,045.87 = 109,543,178.52 : x - Step 2: Convert to fraction form
197,643,493.08/272,748,045.87 = 109,543,178.52/x - Step 3: Cross multiply
197,643,493.08x = 272,748,045.87 × 109,543,178.52 - Step 4: Simplify right side
197,643,493.08x = 29,877,687,879,718,560 - Step 5: Solve for x
x = 29,877,687,879,718,560/197,643,493.08 - Step 6: Final answer
x = 151,169,600.45
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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.