Finding the Fourth Proportional to 981,303,567.15, 1,354,203,132.76 and 535,276,650.41
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Solution
The fourth proportional to 981,303,567.15, 1,354,203,132.76 and 535,276,650.41 is: 738,684,074.07
Step by Step Solution
- Step 1: Write the proportion equation
981,303,567.15 : 1,354,203,132.76 = 535,276,650.41 : x - Step 2: Convert to fraction form
981,303,567.15/1,354,203,132.76 = 535,276,650.41/x - Step 3: Cross multiply
981,303,567.15x = 1,354,203,132.76 × 535,276,650.41 - Step 4: Simplify right side
981,303,567.15x = 724,873,316,878,501,376 - Step 5: Solve for x
x = 724,873,316,878,501,376/981,303,567.15 - Step 6: Final answer
x = 738,684,074.07
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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.