Finding the Fourth Proportional to 128,009,440, 176,653,027.39 and 69,272,105.10
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Solution
The fourth proportional to 128,009,440, 176,653,027.39 and 69,272,105.10 is: 95,595,505.13
Step by Step Solution
- Step 1: Write the proportion equation
128,009,440 : 176,653,027.39 = 69,272,105.10 : x - Step 2: Convert to fraction form
128,009,440/176,653,027.39 = 69,272,105.10/x - Step 3: Cross multiply
128,009,440x = 176,653,027.39 × 69,272,105.10 - Step 4: Simplify right side
128,009,440x = 12,237,127,078,709,992 - Step 5: Solve for x
x = 12,237,127,078,709,992/128,009,440 - Step 6: Final answer
x = 95,595,505.13
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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.