Finding the Fourth Proportional to 420,184,283.55, 579,903,492.93 and 349,495,179.66
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Solution
The fourth proportional to 420,184,283.55, 579,903,492.93 and 349,495,179.66 is: 482,344,255.56
Step by Step Solution
- Step 1: Write the proportion equation
420,184,283.55 : 579,903,492.93 = 349,495,179.66 : x - Step 2: Convert to fraction form
420,184,283.55/579,903,492.93 = 349,495,179.66/x - Step 3: Cross multiply
420,184,283.55x = 579,903,492.93 × 349,495,179.66 - Step 4: Simplify right side
420,184,283.55x = 202,673,475,447,031,872 - Step 5: Solve for x
x = 202,673,475,447,031,872/420,184,283.55 - Step 6: Final answer
x = 482,344,255.56
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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.