Finding the Fourth Proportional to 156,372,567.35, 215,794,169.62 and 86,757,782.15
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Solution
The fourth proportional to 156,372,567.35, 215,794,169.62 and 86,757,782.15 is: 119,725,754.17
Step by Step Solution
- Step 1: Write the proportion equation
156,372,567.35 : 215,794,169.62 = 86,757,782.15 : x - Step 2: Convert to fraction form
156,372,567.35/215,794,169.62 = 86,757,782.15/x - Step 3: Cross multiply
156,372,567.35x = 215,794,169.62 × 86,757,782.15 - Step 4: Simplify right side
156,372,567.35x = 18,721,823,557,454,700 - Step 5: Solve for x
x = 18,721,823,557,454,700/156,372,567.35 - Step 6: Final answer
x = 119,725,754.17
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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.