Finding the Fourth Proportional to 159,891,673.86, 239,801,252.98 and 72,395,430.06
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Solution
The fourth proportional to 159,891,673.86, 239,801,252.98 and 72,395,430.06 is: 108,576,728.35
Step by Step Solution
- Step 1: Write the proportion equation
159,891,673.86 : 239,801,252.98 = 72,395,430.06 : x - Step 2: Convert to fraction form
159,891,673.86/239,801,252.98 = 72,395,430.06/x - Step 3: Cross multiply
159,891,673.86x = 239,801,252.98 × 72,395,430.06 - Step 4: Simplify right side
159,891,673.86x = 17,360,514,838,413,956 - Step 5: Solve for x
x = 17,360,514,838,413,956/159,891,673.86 - Step 6: Final answer
x = 108,576,728.35
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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.