Finding the Fourth Proportional to 218,390,454.71, 301,386,264.63 and 129,158,889.93
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Solution
The fourth proportional to 218,390,454.71, 301,386,264.63 and 129,158,889.93 is: 178,243,666.52
Step by Step Solution
- Step 1: Write the proportion equation
218,390,454.71 : 301,386,264.63 = 129,158,889.93 : x - Step 2: Convert to fraction form
218,390,454.71/301,386,264.63 = 129,158,889.93/x - Step 3: Cross multiply
218,390,454.71x = 301,386,264.63 × 129,158,889.93 - Step 4: Simplify right side
218,390,454.71x = 38,926,715,379,760,024 - Step 5: Solve for x
x = 38,926,715,379,760,024/218,390,454.71 - Step 6: Final answer
x = 178,243,666.52
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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.