Finding the Fourth Proportional to 315,558,516.12, 435,462,398.04 and 176,330,421.96
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Solution
The fourth proportional to 315,558,516.12, 435,462,398.04 and 176,330,421.96 is: 243,331,314.07
Step by Step Solution
- Step 1: Write the proportion equation
315,558,516.12 : 435,462,398.04 = 176,330,421.96 : x - Step 2: Convert to fraction form
315,558,516.12/435,462,398.04 = 176,330,421.96/x - Step 3: Cross multiply
315,558,516.12x = 435,462,398.04 × 176,330,421.96 - Step 4: Simplify right side
315,558,516.12x = 76,785,268,394,106,688 - Step 5: Solve for x
x = 76,785,268,394,106,688/315,558,516.12 - Step 6: Final answer
x = 243,331,314.07
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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.