Finding the Fourth Proportional to 165,386,437.47, 248,232,955.59 and 83,562,823.80
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Solution
The fourth proportional to 165,386,437.47, 248,232,955.59 and 83,562,823.80 is: 125,421,691.44
Step by Step Solution
- Step 1: Write the proportion equation
165,386,437.47 : 248,232,955.59 = 83,562,823.80 : x - Step 2: Convert to fraction form
165,386,437.47/248,232,955.59 = 83,562,823.80/x - Step 3: Cross multiply
165,386,437.47x = 248,232,955.59 × 83,562,823.80 - Step 4: Simplify right side
165,386,437.47x = 20,743,046,729,320,396 - Step 5: Solve for x
x = 20,743,046,729,320,396/165,386,437.47 - Step 6: Final answer
x = 125,421,691.44
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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.