Finding the Fourth Proportional to 875,301,128.90, 1,207,911,946.28 and 473,415,326.41
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Solution
The fourth proportional to 875,301,128.90, 1,207,911,946.28 and 473,415,326.41 is: 653,311,197.07
Step by Step Solution
- Step 1: Write the proportion equation
875,301,128.90 : 1,207,911,946.28 = 473,415,326.41 : x - Step 2: Convert to fraction form
875,301,128.90/1,207,911,946.28 = 473,415,326.41/x - Step 3: Cross multiply
875,301,128.90x = 1,207,911,946.28 × 473,415,326.41 - Step 4: Simplify right side
875,301,128.90x = 571,844,028,322,684,608 - Step 5: Solve for x
x = 571,844,028,322,684,608/875,301,128.90 - Step 6: Final answer
x = 653,311,197.07
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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.