Finding the Fourth Proportional to 960,620,619.34, 1,325,657,588.70 and 520,587,471.34
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Solution
The fourth proportional to 960,620,619.34, 1,325,657,588.70 and 520,587,471.34 is: 718,411,325.00
Step by Step Solution
- Step 1: Write the proportion equation
960,620,619.34 : 1,325,657,588.70 = 520,587,471.34 : x - Step 2: Convert to fraction form
960,620,619.34/1,325,657,588.70 = 520,587,471.34/x - Step 3: Cross multiply
960,620,619.34x = 1,325,657,588.70 × 520,587,471.34 - Step 4: Simplify right side
960,620,619.34x = 690,120,731,964,014,720 - Step 5: Solve for x
x = 690,120,731,964,014,720/960,620,619.34 - Step 6: Final answer
x = 718,411,325.00
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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.