Finding the Fourth Proportional to 43,292,970.42, 64,947,810.56 and 14,138,971.74
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Solution
The fourth proportional to 43,292,970.42, 64,947,810.56 and 14,138,971.74 is: 21,211,186.23
Step by Step Solution
- Step 1: Write the proportion equation
43,292,970.42 : 64,947,810.56 = 14,138,971.74 : x - Step 2: Convert to fraction form
43,292,970.42/64,947,810.56 = 14,138,971.74/x - Step 3: Cross multiply
43,292,970.42x = 64,947,810.56 × 14,138,971.74 - Step 4: Simplify right side
43,292,970.42x = 918,295,257,908,852.25 - Step 5: Solve for x
x = 918,295,257,908,852.25/43,292,970.42 - Step 6: Final answer
x = 21,211,186.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.