Finding the Fourth Proportional to 166,008,139.20, 249,021,287.28 and 68,973,657.84
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Solution
The fourth proportional to 166,008,139.20, 249,021,287.28 and 68,973,657.84 is: 103,464,258.72
Step by Step Solution
- Step 1: Write the proportion equation
166,008,139.20 : 249,021,287.28 = 68,973,657.84 : x - Step 2: Convert to fraction form
166,008,139.20/249,021,287.28 = 68,973,657.84/x - Step 3: Cross multiply
166,008,139.20x = 249,021,287.28 × 68,973,657.84 - Step 4: Simplify right side
166,008,139.20x = 17,175,909,063,727,066 - Step 5: Solve for x
x = 17,175,909,063,727,066/166,008,139.20 - Step 6: Final answer
x = 103,464,258.72
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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.