Finding the Fourth Proportional to 745,277,084.64, 1,028,486,593.08 and 432,197,187.12
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Solution
The fourth proportional to 745,277,084.64, 1,028,486,593.08 and 432,197,187.12 is: 596,434,563.31
Step by Step Solution
- Step 1: Write the proportion equation
745,277,084.64 : 1,028,486,593.08 = 432,197,187.12 : x - Step 2: Convert to fraction form
745,277,084.64/1,028,486,593.08 = 432,197,187.12/x - Step 3: Cross multiply
745,277,084.64x = 1,028,486,593.08 × 432,197,187.12 - Step 4: Simplify right side
745,277,084.64x = 444,509,012,519,808,064 - Step 5: Solve for x
x = 444,509,012,519,808,064/745,277,084.64 - Step 6: Final answer
x = 596,434,563.31
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Double scale
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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.