Finding the Fourth Proportional to 225,254,478.12, 310,851,182.34 and 122,238,030.12
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Solution
The fourth proportional to 225,254,478.12, 310,851,182.34 and 122,238,030.12 is: 168,688,482.94
Step by Step Solution
- Step 1: Write the proportion equation
225,254,478.12 : 310,851,182.34 = 122,238,030.12 : x - Step 2: Convert to fraction form
225,254,478.12/310,851,182.34 = 122,238,030.12/x - Step 3: Cross multiply
225,254,478.12x = 310,851,182.34 × 122,238,030.12 - Step 4: Simplify right side
225,254,478.12x = 37,997,836,189,714,528 - Step 5: Solve for x
x = 37,997,836,189,714,528/225,254,478.12 - Step 6: Final answer
x = 168,688,482.94
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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.