Finding the Fourth Proportional to 4,292,352,043.20, 6,438,528,064.80 and 1,228,732,459.20
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Solution
The fourth proportional to 4,292,352,043.20, 6,438,528,064.80 and 1,228,732,459.20 is: 1,843,098,688.80
Step by Step Solution
- Step 1: Write the proportion equation
4,292,352,043.20 : 6,438,528,064.80 = 1,228,732,459.20 : x - Step 2: Convert to fraction form
4,292,352,043.20/6,438,528,064.80 = 1,228,732,459.20/x - Step 3: Cross multiply
4,292,352,043.20x = 6,438,528,064.80 × 1,228,732,459.20 - Step 4: Simplify right side
4,292,352,043.20x = 7,911,228,422,689,921,024 - Step 5: Solve for x
x = 7,911,228,422,689,921,024/4,292,352,043.20 - Step 6: Final answer
x = 1,843,098,688.80
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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.