Finding the Fourth Proportional to 208,742,973.74, 288,115,473.92 and 119,486,658.55
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Solution
The fourth proportional to 208,742,973.74, 288,115,473.92 and 119,486,658.55 is: 164,920,306.72
Step by Step Solution
- Step 1: Write the proportion equation
208,742,973.74 : 288,115,473.92 = 119,486,658.55 : x - Step 2: Convert to fraction form
208,742,973.74/288,115,473.92 = 119,486,658.55/x - Step 3: Cross multiply
208,742,973.74x = 288,115,473.92 × 119,486,658.55 - Step 4: Simplify right side
208,742,973.74x = 34,425,955,255,250,472 - Step 5: Solve for x
x = 34,425,955,255,250,472/208,742,973.74 - Step 6: Final answer
x = 164,920,306.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.