Finding the Fourth Proportional to 145,514,920.80, 218,272,381.20 and 72,742,933.20
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Solution
The fourth proportional to 145,514,920.80, 218,272,381.20 and 72,742,933.20 is: 109,114,399.80
Step by Step Solution
- Step 1: Write the proportion equation
145,514,920.80 : 218,272,381.20 = 72,742,933.20 : x - Step 2: Convert to fraction form
145,514,920.80/218,272,381.20 = 72,742,933.20/x - Step 3: Cross multiply
145,514,920.80x = 218,272,381.20 × 72,742,933.20 - Step 4: Simplify right side
145,514,920.80x = 15,877,773,245,036,536 - Step 5: Solve for x
x = 15,877,773,245,036,536/145,514,920.80 - Step 6: Final answer
x = 109,114,399.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.