Finding the Fourth Proportional to 1,648,134,007.20, 2,472,201,010.80 and 557,617,075.20
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Solution
The fourth proportional to 1,648,134,007.20, 2,472,201,010.80 and 557,617,075.20 is: 836,425,612.80
Step by Step Solution
- Step 1: Write the proportion equation
1,648,134,007.20 : 2,472,201,010.80 = 557,617,075.20 : x - Step 2: Convert to fraction form
1,648,134,007.20/2,472,201,010.80 = 557,617,075.20/x - Step 3: Cross multiply
1,648,134,007.20x = 2,472,201,010.80 × 557,617,075.20 - Step 4: Simplify right side
1,648,134,007.20x = 1,378,541,496,948,779,776 - Step 5: Solve for x
x = 1,378,541,496,948,779,776/1,648,134,007.20 - Step 6: Final answer
x = 836,425,612.80
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Similar ratio
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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.