Finding the Fourth Proportional to 160,686,106.86, 221,749,257.10 and 90,137,355.68
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Solution
The fourth proportional to 160,686,106.86, 221,749,257.10 and 90,137,355.68 is: 124,390,913.75
Step by Step Solution
- Step 1: Write the proportion equation
160,686,106.86 : 221,749,257.10 = 90,137,355.68 : x - Step 2: Convert to fraction form
160,686,106.86/221,749,257.10 = 90,137,355.68/x - Step 3: Cross multiply
160,686,106.86x = 221,749,257.10 × 90,137,355.68 - Step 4: Simplify right side
160,686,106.86x = 19,987,891,658,998,468 - Step 5: Solve for x
x = 19,987,891,658,998,468/160,686,106.86 - Step 6: Final answer
x = 124,390,913.75
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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.