Finding the Fourth Proportional to 165,631,590, 228,588,599.88 and 99,573,473.70
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Solution
The fourth proportional to 165,631,590, 228,588,599.88 and 99,573,473.70 is: 137,421,617.09
Step by Step Solution
- Step 1: Write the proportion equation
165,631,590 : 228,588,599.88 = 99,573,473.70 : x - Step 2: Convert to fraction form
165,631,590/228,588,599.88 = 99,573,473.70/x - Step 3: Cross multiply
165,631,590x = 228,588,599.88 × 99,573,473.70 - Step 4: Simplify right side
165,631,590x = 22,761,360,938,271,004 - Step 5: Solve for x
x = 22,761,360,938,271,004/165,631,590 - Step 6: Final answer
x = 137,421,617.09
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1.5x scale
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.