Finding the Fourth Proportional to 90,255,769,881.93, 124,551,286,831.63 and 49,609,812,438.67
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Solution
The fourth proportional to 90,255,769,881.93, 124,551,286,831.63 and 49,609,812,438.67 is: 68,460,620,155.31
Step by Step Solution
- Step 1: Write the proportion equation
90,255,769,881.93 : 124,551,286,831.63 = 49,609,812,438.67 : x - Step 2: Convert to fraction form
90,255,769,881.93/124,551,286,831.63 = 49,609,812,438.67/x - Step 3: Cross multiply
90,255,769,881.93x = 124,551,286,831.63 × 49,609,812,438.67 - Step 4: Simplify right side
90,255,769,881.93x = 6,178,965,978,712,152,997,888 - Step 5: Solve for x
x = 6,178,965,978,712,152,997,888/90,255,769,881.93 - Step 6: Final answer
x = 68,460,620,155.31
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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.