Finding the Fourth Proportional to 1,021,887,317.58, 1,410,205,116.08 and 551,988,846.14
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Solution
The fourth proportional to 1,021,887,317.58, 1,410,205,116.08 and 551,988,846.14 is: 761,744,941.39
Step by Step Solution
- Step 1: Write the proportion equation
1,021,887,317.58 : 1,410,205,116.08 = 551,988,846.14 : x - Step 2: Convert to fraction form
1,021,887,317.58/1,410,205,116.08 = 551,988,846.14/x - Step 3: Cross multiply
1,021,887,317.58x = 1,410,205,116.08 × 551,988,846.14 - Step 4: Simplify right side
1,021,887,317.58x = 778,417,494,842,484,096 - Step 5: Solve for x
x = 778,417,494,842,484,096/1,021,887,317.58 - Step 6: Final answer
x = 761,744,941.39
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.