Finding the Fourth Proportional to 82,758,854.80, 124,138,282.20 and 73,671,213.70
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Solution
The fourth proportional to 82,758,854.80, 124,138,282.20 and 73,671,213.70 is: 110,506,820.55
Step by Step Solution
- Step 1: Write the proportion equation
82,758,854.80 : 124,138,282.20 = 73,671,213.70 : x - Step 2: Convert to fraction form
82,758,854.80/124,138,282.20 = 73,671,213.70/x - Step 3: Cross multiply
82,758,854.80x = 124,138,282.20 × 73,671,213.70 - Step 4: Simplify right side
82,758,854.80x = 9,145,417,916,307,106 - Step 5: Solve for x
x = 9,145,417,916,307,106/82,758,854.80 - Step 6: Final answer
x = 110,506,820.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.