Finding the Fourth Proportional to 1,259,712,530.84, 1,738,400,726.22 and 702,762,362.84
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Solution
The fourth proportional to 1,259,712,530.84, 1,738,400,726.22 and 702,762,362.84 is: 969,810,629.02
Step by Step Solution
- Step 1: Write the proportion equation
1,259,712,530.84 : 1,738,400,726.22 = 702,762,362.84 : x - Step 2: Convert to fraction form
1,259,712,530.84/1,738,400,726.22 = 702,762,362.84/x - Step 3: Cross multiply
1,259,712,530.84x = 1,738,400,726.22 × 702,762,362.84 - Step 4: Simplify right side
1,259,712,530.84x = 1,221,682,601,921,139,200 - Step 5: Solve for x
x = 1,221,682,601,921,139,200/1,259,712,530.84 - Step 6: Final answer
x = 969,810,629.02
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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.