Finding the Fourth Proportional to 1,165,382,949.40, 1,748,074,424.10 and 1,038,403,979.80
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Solution
The fourth proportional to 1,165,382,949.40, 1,748,074,424.10 and 1,038,403,979.80 is: 1,557,605,969.70
Step by Step Solution
- Step 1: Write the proportion equation
1,165,382,949.40 : 1,748,074,424.10 = 1,038,403,979.80 : x - Step 2: Convert to fraction form
1,165,382,949.40/1,748,074,424.10 = 1,038,403,979.80/x - Step 3: Cross multiply
1,165,382,949.40x = 1,748,074,424.10 × 1,038,403,979.80 - Step 4: Simplify right side
1,165,382,949.40x = 1,815,207,438,972,032,768 - Step 5: Solve for x
x = 1,815,207,438,972,032,768/1,165,382,949.40 - Step 6: Final answer
x = 1,557,605,969.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.