Finding the Fourth Proportional to 1,281,974,437.80, 1,924,977,195.90 and 737,778,853.80
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Solution
The fourth proportional to 1,281,974,437.80, 1,924,977,195.90 and 737,778,853.80 is: 1,107,828,227.54
Step by Step Solution
- Step 1: Write the proportion equation
1,281,974,437.80 : 1,924,977,195.90 = 737,778,853.80 : x - Step 2: Convert to fraction form
1,281,974,437.80/1,924,977,195.90 = 737,778,853.80/x - Step 3: Cross multiply
1,281,974,437.80x = 1,924,977,195.90 × 737,778,853.80 - Step 4: Simplify right side
1,281,974,437.80x = 1,420,207,469,182,240,000 - Step 5: Solve for x
x = 1,420,207,469,182,240,000/1,281,974,437.80 - Step 6: Final answer
x = 1,107,828,227.54
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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.