Finding the Fourth Proportional to 166,464,020.80, 249,696,031.20 and 137,742,587.20
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Solution
The fourth proportional to 166,464,020.80, 249,696,031.20 and 137,742,587.20 is: 206,613,880.80
Step by Step Solution
- Step 1: Write the proportion equation
166,464,020.80 : 249,696,031.20 = 137,742,587.20 : x - Step 2: Convert to fraction form
166,464,020.80/249,696,031.20 = 137,742,587.20/x - Step 3: Cross multiply
166,464,020.80x = 249,696,031.20 × 137,742,587.20 - Step 4: Simplify right side
166,464,020.80x = 34,393,777,351,059,916 - Step 5: Solve for x
x = 34,393,777,351,059,916/166,464,020.80 - Step 6: Final answer
x = 206,613,880.80
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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.