Finding the Fourth Proportional to 869,425,321.96, 1,200,357,689.70 and 539,750,293.48
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Solution
The fourth proportional to 869,425,321.96, 1,200,357,689.70 and 539,750,293.48 is: 745,197,314.75
Step by Step Solution
- Step 1: Write the proportion equation
869,425,321.96 : 1,200,357,689.70 = 539,750,293.48 : x - Step 2: Convert to fraction form
869,425,321.96/1,200,357,689.70 = 539,750,293.48/x - Step 3: Cross multiply
869,425,321.96x = 1,200,357,689.70 × 539,750,293.48 - Step 4: Simplify right side
869,425,321.96x = 647,893,415,296,549,760 - Step 5: Solve for x
x = 647,893,415,296,549,760/869,425,321.96 - Step 6: Final answer
x = 745,197,314.75
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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.