Finding the Fourth Proportional to 156,137,036.52, 215,470,386.18 and 86,523,580.20
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Solution
The fourth proportional to 156,137,036.52, 215,470,386.18 and 86,523,580.20 is: 119,403,247.65
Step by Step Solution
- Step 1: Write the proportion equation
156,137,036.52 : 215,470,386.18 = 86,523,580.20 : x - Step 2: Convert to fraction form
156,137,036.52/215,470,386.18 = 86,523,580.20/x - Step 3: Cross multiply
156,137,036.52x = 215,470,386.18 × 86,523,580.20 - Step 4: Simplify right side
156,137,036.52x = 18,643,269,239,370,204 - Step 5: Solve for x
x = 18,643,269,239,370,204/156,137,036.52 - Step 6: Final answer
x = 119,403,247.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.