Finding the Fourth Proportional to 121,051,206.08, 166,855,519.20 and 81,878,697.28
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Solution
The fourth proportional to 121,051,206.08, 166,855,519.20 and 81,878,697.28 is: 112,860,606.59
Step by Step Solution
- Step 1: Write the proportion equation
121,051,206.08 : 166,855,519.20 = 81,878,697.28 : x - Step 2: Convert to fraction form
121,051,206.08/166,855,519.20 = 81,878,697.28/x - Step 3: Cross multiply
121,051,206.08x = 166,855,519.20 × 81,878,697.28 - Step 4: Simplify right side
121,051,206.08x = 13,661,912,546,074,026 - Step 5: Solve for x
x = 13,661,912,546,074,026/121,051,206.08 - Step 6: Final answer
x = 112,860,606.59
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.