Finding the Fourth Proportional to 1,821,402,267.51, 2,513,535,971.39 and 986,026,839.02
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Solution
The fourth proportional to 1,821,402,267.51, 2,513,535,971.39 and 986,026,839.02 is: 1,360,717,493.78
Step by Step Solution
- Step 1: Write the proportion equation
1,821,402,267.51 : 2,513,535,971.39 = 986,026,839.02 : x - Step 2: Convert to fraction form
1,821,402,267.51/2,513,535,971.39 = 986,026,839.02/x - Step 3: Cross multiply
1,821,402,267.51x = 2,513,535,971.39 × 986,026,839.02 - Step 4: Simplify right side
1,821,402,267.51x = 2,478,413,928,615,249,408 - Step 5: Solve for x
x = 2,478,413,928,615,249,408/1,821,402,267.51 - Step 6: Final answer
x = 1,360,717,493.78
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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.