Finding the Fourth Proportional to 719,263,863.77, 992,580,482.77 and 389,239,002.77
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Solution
The fourth proportional to 719,263,863.77, 992,580,482.77 and 389,239,002.77 is: 537,147,848.99
Step by Step Solution
- Step 1: Write the proportion equation
719,263,863.77 : 992,580,482.77 = 389,239,002.77 : x - Step 2: Convert to fraction form
719,263,863.77/992,580,482.77 = 389,239,002.77/x - Step 3: Cross multiply
719,263,863.77x = 992,580,482.77 × 389,239,002.77 - Step 4: Simplify right side
719,263,863.77x = 386,351,037,276,424,000 - Step 5: Solve for x
x = 386,351,037,276,424,000/719,263,863.77 - Step 6: Final answer
x = 537,147,848.99
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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.