Finding the Fourth Proportional to 1,778,773,984.98, 2,454,708,331.95 and 985,871,154.21
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Solution
The fourth proportional to 1,778,773,984.98, 2,454,708,331.95 and 985,871,154.21 is: 1,360,502,321.77
Step by Step Solution
- Step 1: Write the proportion equation
1,778,773,984.98 : 2,454,708,331.95 = 985,871,154.21 : x - Step 2: Convert to fraction form
1,778,773,984.98/2,454,708,331.95 = 985,871,154.21/x - Step 3: Cross multiply
1,778,773,984.98x = 2,454,708,331.95 × 985,871,154.21 - Step 4: Simplify right side
1,778,773,984.98x = 2,420,026,136,468,450,304 - Step 5: Solve for x
x = 2,420,026,136,468,450,304/1,778,773,984.98 - Step 6: Final answer
x = 1,360,502,321.77
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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.