Finding the Fourth Proportional to 405,112,714.80, 559,056,113.70 and 219,473,730.49
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Solution
The fourth proportional to 405,112,714.80, 559,056,113.70 and 219,473,730.49 is: 302,874,055.40
Step by Step Solution
- Step 1: Write the proportion equation
405,112,714.80 : 559,056,113.70 = 219,473,730.49 : x - Step 2: Convert to fraction form
405,112,714.80/559,056,113.70 = 219,473,730.49/x - Step 3: Cross multiply
405,112,714.80x = 559,056,113.70 × 219,473,730.49 - Step 4: Simplify right side
405,112,714.80x = 122,698,130,824,734,000 - Step 5: Solve for x
x = 122,698,130,824,734,000/405,112,714.80 - Step 6: Final answer
x = 302,874,055.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.