Finding the Fourth Proportional to 1,119,630,811.89, 1,545,397,837.07 and 649,883,470.80
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Solution
The fourth proportional to 1,119,630,811.89, 1,545,397,837.07 and 649,883,470.80 is: 897,017,569.95
Step by Step Solution
- Step 1: Write the proportion equation
1,119,630,811.89 : 1,545,397,837.07 = 649,883,470.80 : x - Step 2: Convert to fraction form
1,119,630,811.89/1,545,397,837.07 = 649,883,470.80/x - Step 3: Cross multiply
1,119,630,811.89x = 1,545,397,837.07 × 649,883,470.80 - Step 4: Simplify right side
1,119,630,811.89x = 1,004,328,510,118,615,040 - Step 5: Solve for x
x = 1,004,328,510,118,615,040/1,119,630,811.89 - Step 6: Final answer
x = 897,017,569.95
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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.