Finding the Fourth Proportional to 133,056,208.60, 199,584,312.90 and 75,725,315.80
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Solution
The fourth proportional to 133,056,208.60, 199,584,312.90 and 75,725,315.80 is: 113,587,973.70
Step by Step Solution
- Step 1: Write the proportion equation
133,056,208.60 : 199,584,312.90 = 75,725,315.80 : x - Step 2: Convert to fraction form
133,056,208.60/199,584,312.90 = 75,725,315.80/x - Step 3: Cross multiply
133,056,208.60x = 199,584,312.90 × 75,725,315.80 - Step 4: Simplify right side
133,056,208.60x = 15,113,585,123,078,514 - Step 5: Solve for x
x = 15,113,585,123,078,514/133,056,208.60 - Step 6: Final answer
x = 113,587,973.70
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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.