Finding the Fourth Proportional to 316,711,973.57, 475,067,009.99 and 80,361,037.65
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Solution
The fourth proportional to 316,711,973.57, 475,067,009.99 and 80,361,037.65 is: 120,541,315.33
Step by Step Solution
- Step 1: Write the proportion equation
316,711,973.57 : 475,067,009.99 = 80,361,037.65 : x - Step 2: Convert to fraction form
316,711,973.57/475,067,009.99 = 80,361,037.65/x - Step 3: Cross multiply
316,711,973.57x = 475,067,009.99 × 80,361,037.65 - Step 4: Simplify right side
316,711,973.57x = 38,176,877,876,280,224 - Step 5: Solve for x
x = 38,176,877,876,280,224/316,711,973.57 - Step 6: Final answer
x = 120,541,315.33
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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.