Finding the Fourth Proportional to 118,173,574.16, 163,106,742.12 and 69,296,748.56
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Solution
The fourth proportional to 118,173,574.16, 163,106,742.12 and 69,296,748.56 is: 95,645,468.77
Step by Step Solution
- Step 1: Write the proportion equation
118,173,574.16 : 163,106,742.12 = 69,296,748.56 : x - Step 2: Convert to fraction form
118,173,574.16/163,106,742.12 = 69,296,748.56/x - Step 3: Cross multiply
118,173,574.16x = 163,106,742.12 × 69,296,748.56 - Step 4: Simplify right side
118,173,574.16x = 11,302,766,897,130,402 - Step 5: Solve for x
x = 11,302,766,897,130,402/118,173,574.16 - Step 6: Final answer
x = 95,645,468.77
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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.