Finding the Fourth Proportional to 13,355,680.07, 18,430,657.62 and 7,475,312.50
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Solution
The fourth proportional to 13,355,680.07, 18,430,657.62 and 7,475,312.50 is: 10,315,830.01
Step by Step Solution
- Step 1: Write the proportion equation
13,355,680.07 : 18,430,657.62 = 7,475,312.50 : x - Step 2: Convert to fraction form
13,355,680.07/18,430,657.62 = 7,475,312.50/x - Step 3: Cross multiply
13,355,680.07x = 18,430,657.62 × 7,475,312.50 - Step 4: Simplify right side
13,355,680.07x = 137,774,925,290,006.25 - Step 5: Solve for x
x = 137,774,925,290,006.25/13,355,680.07 - Step 6: Final answer
x = 10,315,830.01
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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.