Finding the Fourth Proportional to 875,493,973.68, 1,316,391,027.84 and 807,241,756.92
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Solution
The fourth proportional to 875,493,973.68, 1,316,391,027.84 and 807,241,756.92 is: 1,213,767,128.11
Step by Step Solution
- Step 1: Write the proportion equation
875,493,973.68 : 1,316,391,027.84 = 807,241,756.92 : x - Step 2: Convert to fraction form
875,493,973.68/1,316,391,027.84 = 807,241,756.92/x - Step 3: Cross multiply
875,493,973.68x = 1,316,391,027.84 × 807,241,756.92 - Step 4: Simplify right side
875,493,973.68x = 1,062,645,806,107,286,144 - Step 5: Solve for x
x = 1,062,645,806,107,286,144/875,493,973.68 - Step 6: Final answer
x = 1,213,767,128.11
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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.