Finding the Fourth Proportional to 97,872,211.21, 135,072,258.47 and 53,826,970.81
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Solution
The fourth proportional to 97,872,211.21, 135,072,258.47 and 53,826,970.81 is: 74,285,953.33
Step by Step Solution
- Step 1: Write the proportion equation
97,872,211.21 : 135,072,258.47 = 53,826,970.81 : x - Step 2: Convert to fraction form
97,872,211.21/135,072,258.47 = 53,826,970.81/x - Step 3: Cross multiply
97,872,211.21x = 135,072,258.47 × 53,826,970.81 - Step 4: Simplify right side
97,872,211.21x = 7,270,530,513,905,466 - Step 5: Solve for x
x = 7,270,530,513,905,466/97,872,211.21 - Step 6: Final answer
x = 74,285,953.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.