Finding the Fourth Proportional to 477,423,534.30, 658,603,312.11 and 279,055,430.70
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Solution
The fourth proportional to 477,423,534.30, 658,603,312.11 and 279,055,430.70 is: 384,955,532.60
Step by Step Solution
- Step 1: Write the proportion equation
477,423,534.30 : 658,603,312.11 = 279,055,430.70 : x - Step 2: Convert to fraction form
477,423,534.30/658,603,312.11 = 279,055,430.70/x - Step 3: Cross multiply
477,423,534.30x = 658,603,312.11 × 279,055,430.70 - Step 4: Simplify right side
477,423,534.30x = 183,786,830,921,302,560 - Step 5: Solve for x
x = 183,786,830,921,302,560/477,423,534.30 - Step 6: Final answer
x = 384,955,532.60
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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.