Finding the Fourth Proportional to 1,731,518,572.16, 2,389,431,589.98 and 938,547,525.80
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Solution
The fourth proportional to 1,731,518,572.16, 2,389,431,589.98 and 938,547,525.80 is: 1,295,160,873.76
Step by Step Solution
- Step 1: Write the proportion equation
1,731,518,572.16 : 2,389,431,589.98 = 938,547,525.80 : x - Step 2: Convert to fraction form
1,731,518,572.16/2,389,431,589.98 = 938,547,525.80/x - Step 3: Cross multiply
1,731,518,572.16x = 2,389,431,589.98 × 938,547,525.80 - Step 4: Simplify right side
1,731,518,572.16x = 2,242,595,106,844,089,088 - Step 5: Solve for x
x = 2,242,595,106,844,089,088/1,731,518,572.16 - Step 6: Final answer
x = 1,295,160,873.76
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1.5x scale
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.