Finding the Fourth Proportional to 1,155,608,129.40, 1,594,748,230.47 and 679,170,551.19
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Solution
The fourth proportional to 1,155,608,129.40, 1,594,748,230.47 and 679,170,551.19 is: 937,260,657.09
Step by Step Solution
- Step 1: Write the proportion equation
1,155,608,129.40 : 1,594,748,230.47 = 679,170,551.19 : x - Step 2: Convert to fraction form
1,155,608,129.40/1,594,748,230.47 = 679,170,551.19/x - Step 3: Cross multiply
1,155,608,129.40x = 1,594,748,230.47 × 679,170,551.19 - Step 4: Simplify right side
1,155,608,129.40x = 1,083,106,034,697,587,200 - Step 5: Solve for x
x = 1,083,106,034,697,587,200/1,155,608,129.40 - Step 6: Final answer
x = 937,260,657.09
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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.