Finding the Fourth Proportional to 1,069,278,867.60, 1,603,694,352.60 and 524,411,437.20
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Solution
The fourth proportional to 1,069,278,867.60, 1,603,694,352.60 and 524,411,437.20 is: 786,507,323.54
Step by Step Solution
- Step 1: Write the proportion equation
1,069,278,867.60 : 1,603,694,352.60 = 524,411,437.20 : x - Step 2: Convert to fraction form
1,069,278,867.60/1,603,694,352.60 = 524,411,437.20/x - Step 3: Cross multiply
1,069,278,867.60x = 1,603,694,352.60 × 524,411,437.20 - Step 4: Simplify right side
1,069,278,867.60x = 840,995,660,276,489,472 - Step 5: Solve for x
x = 840,995,660,276,489,472/1,069,278,867.60 - Step 6: Final answer
x = 786,507,323.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.