Finding the Fourth Proportional to 124,471,284.05, 171,792,856.82 and 74,238,723.02
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Solution
The fourth proportional to 124,471,284.05, 171,792,856.82 and 74,238,723.02 is: 102,462,848.45
Step by Step Solution
- Step 1: Write the proportion equation
124,471,284.05 : 171,792,856.82 = 74,238,723.02 : x - Step 2: Convert to fraction form
124,471,284.05/171,792,856.82 = 74,238,723.02/x - Step 3: Cross multiply
124,471,284.05x = 171,792,856.82 × 74,238,723.02 - Step 4: Simplify right side
124,471,284.05x = 12,753,682,313,044,340 - Step 5: Solve for x
x = 12,753,682,313,044,340/124,471,284.05 - Step 6: Final answer
x = 102,462,848.45
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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.