Finding the Fourth Proportional to 206,948,536.90, 310,552,040.12 and 137,909,783.90
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Solution
The fourth proportional to 206,948,536.90, 310,552,040.12 and 137,909,783.90 is: 206,950,797.45
Step by Step Solution
- Step 1: Write the proportion equation
206,948,536.90 : 310,552,040.12 = 137,909,783.90 : x - Step 2: Convert to fraction form
206,948,536.90/310,552,040.12 = 137,909,783.90/x - Step 3: Cross multiply
206,948,536.90x = 310,552,040.12 × 137,909,783.90 - Step 4: Simplify right side
206,948,536.90x = 42,828,164,742,740,160 - Step 5: Solve for x
x = 42,828,164,742,740,160/206,948,536.90 - Step 6: Final answer
x = 206,950,797.45
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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.