Finding the Fourth Proportional to 4,290,658,599.36, 6,432,514,765 and 1,341,420,126.84
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Solution
The fourth proportional to 4,290,658,599.36, 6,432,514,765 and 1,341,420,126.84 is: 2,011,044,358.84
Step by Step Solution
- Step 1: Write the proportion equation
4,290,658,599.36 : 6,432,514,765 = 1,341,420,126.84 : x - Step 2: Convert to fraction form
4,290,658,599.36/6,432,514,765 = 1,341,420,126.84/x - Step 3: Cross multiply
4,290,658,599.36x = 6,432,514,765 × 1,341,420,126.84 - Step 4: Simplify right side
4,290,658,599.36x = 8,628,704,771,966,472,192 - Step 5: Solve for x
x = 8,628,704,771,966,472,192/4,290,658,599.36 - Step 6: Final answer
x = 2,011,044,358.84
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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.