Finding the Fourth Proportional to 319,698,601.70, 479,547,902.55 and 216,386,471.30
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Solution
The fourth proportional to 319,698,601.70, 479,547,902.55 and 216,386,471.30 is: 324,579,706.95
Step by Step Solution
- Step 1: Write the proportion equation
319,698,601.70 : 479,547,902.55 = 216,386,471.30 : x - Step 2: Convert to fraction form
319,698,601.70/479,547,902.55 = 216,386,471.30/x - Step 3: Cross multiply
319,698,601.70x = 479,547,902.55 × 216,386,471.30 - Step 4: Simplify right side
319,698,601.70x = 103,767,678,452,110,784 - Step 5: Solve for x
x = 103,767,678,452,110,784/319,698,601.70 - Step 6: Final answer
x = 324,579,706.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.