Finding the Fourth Proportional to 390,908,316.66, 586,232,269.38 and 157,678,790.10
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Solution
The fourth proportional to 390,908,316.66, 586,232,269.38 and 157,678,790.10 is: 236,465,664.75
Step by Step Solution
- Step 1: Write the proportion equation
390,908,316.66 : 586,232,269.38 = 157,678,790.10 : x - Step 2: Convert to fraction form
390,908,316.66/586,232,269.38 = 157,678,790.10/x - Step 3: Cross multiply
390,908,316.66x = 586,232,269.38 × 157,678,790.10 - Step 4: Simplify right side
390,908,316.66x = 92,436,394,953,415,680 - Step 5: Solve for x
x = 92,436,394,953,415,680/390,908,316.66 - Step 6: Final answer
x = 236,465,664.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.