Finding the Fourth Proportional to 286,387,246.20, 429,580,869.30 and 163,943,239.80
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Solution
The fourth proportional to 286,387,246.20, 429,580,869.30 and 163,943,239.80 is: 245,914,859.70
Step by Step Solution
- Step 1: Write the proportion equation
286,387,246.20 : 429,580,869.30 = 163,943,239.80 : x - Step 2: Convert to fraction form
286,387,246.20/429,580,869.30 = 163,943,239.80/x - Step 3: Cross multiply
286,387,246.20x = 429,580,869.30 × 163,943,239.80 - Step 4: Simplify right side
286,387,246.20x = 70,426,879,469,142,368 - Step 5: Solve for x
x = 70,426,879,469,142,368/286,387,246.20 - Step 6: Final answer
x = 245,914,859.70
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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.