Finding the Fourth Proportional to 1,245,461,528.65, 1,718,772,781.80 and 688,580,447.98
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Solution
The fourth proportional to 1,245,461,528.65, 1,718,772,781.80 and 688,580,447.98 is: 950,260,850.97
Step by Step Solution
- Step 1: Write the proportion equation
1,245,461,528.65 : 1,718,772,781.80 = 688,580,447.98 : x - Step 2: Convert to fraction form
1,245,461,528.65/1,718,772,781.80 = 688,580,447.98/x - Step 3: Cross multiply
1,245,461,528.65x = 1,718,772,781.80 × 688,580,447.98 - Step 4: Simplify right side
1,245,461,528.65x = 1,183,513,332,058,615,040 - Step 5: Solve for x
x = 1,183,513,332,058,615,040/1,245,461,528.65 - Step 6: Final answer
x = 950,260,850.97
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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.