Finding the Fourth Proportional to 1,009,107,209.20, 1,513,660,813.80 and 737,009,417.20
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Solution
The fourth proportional to 1,009,107,209.20, 1,513,660,813.80 and 737,009,417.20 is: 1,105,514,125.80
Step by Step Solution
- Step 1: Write the proportion equation
1,009,107,209.20 : 1,513,660,813.80 = 737,009,417.20 : x - Step 2: Convert to fraction form
1,009,107,209.20/1,513,660,813.80 = 737,009,417.20/x - Step 3: Cross multiply
1,009,107,209.20x = 1,513,660,813.80 × 737,009,417.20 - Step 4: Simplify right side
1,009,107,209.20x = 1,115,582,274,217,215,744 - Step 5: Solve for x
x = 1,115,582,274,217,215,744/1,009,107,209.20 - Step 6: Final answer
x = 1,105,514,125.80
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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.