Finding the Fourth Proportional to 320,487,731.19, 442,273,069.04 and 173,810,015.19
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Solution
The fourth proportional to 320,487,731.19, 442,273,069.04 and 173,810,015.19 is: 239,857,820.96
Step by Step Solution
- Step 1: Write the proportion equation
320,487,731.19 : 442,273,069.04 = 173,810,015.19 : x - Step 2: Convert to fraction form
320,487,731.19/442,273,069.04 = 173,810,015.19/x - Step 3: Cross multiply
320,487,731.19x = 442,273,069.04 × 173,810,015.19 - Step 4: Simplify right side
320,487,731.19x = 76,871,488,847,101,280 - Step 5: Solve for x
x = 76,871,488,847,101,280/320,487,731.19 - Step 6: Final answer
x = 239,857,820.96
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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.