Finding the Fourth Proportional to 1,158,969,966.90, 1,738,454,950.35 and 698,671,202.10
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Solution
The fourth proportional to 1,158,969,966.90, 1,738,454,950.35 and 698,671,202.10 is: 1,048,006,803.15
Step by Step Solution
- Step 1: Write the proportion equation
1,158,969,966.90 : 1,738,454,950.35 = 698,671,202.10 : x - Step 2: Convert to fraction form
1,158,969,966.90/1,738,454,950.35 = 698,671,202.10/x - Step 3: Cross multiply
1,158,969,966.90x = 1,738,454,950.35 × 698,671,202.10 - Step 4: Simplify right side
1,158,969,966.90x = 1,214,608,409,957,730,304 - Step 5: Solve for x
x = 1,214,608,409,957,730,304/1,158,969,966.90 - Step 6: Final answer
x = 1,048,006,803.15
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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.