Finding the Fourth Proportional to 664,255,263.12, 916,672,228.08 and 358,728,264.96
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Solution
The fourth proportional to 664,255,263.12, 916,672,228.08 and 358,728,264.96 is: 495,044,986.73
Step by Step Solution
- Step 1: Write the proportion equation
664,255,263.12 : 916,672,228.08 = 358,728,264.96 : x - Step 2: Convert to fraction form
664,255,263.12/916,672,228.08 = 358,728,264.96/x - Step 3: Cross multiply
664,255,263.12x = 916,672,228.08 × 358,728,264.96 - Step 4: Simplify right side
664,255,263.12x = 328,836,237,916,155,776 - Step 5: Solve for x
x = 328,836,237,916,155,776/664,255,263.12 - Step 6: Final answer
x = 495,044,986.73
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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.