Finding the Fourth Proportional to 785,230,181.44, 1,083,553,932.96 and 455,226,578.08
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Solution
The fourth proportional to 785,230,181.44, 1,083,553,932.96 and 455,226,578.08 is: 628,175,738.43
Step by Step Solution
- Step 1: Write the proportion equation
785,230,181.44 : 1,083,553,932.96 = 455,226,578.08 : x - Step 2: Convert to fraction form
785,230,181.44/1,083,553,932.96 = 455,226,578.08/x - Step 3: Cross multiply
785,230,181.44x = 1,083,553,932.96 × 455,226,578.08 - Step 4: Simplify right side
785,230,181.44x = 493,262,549,066,506,496 - Step 5: Solve for x
x = 493,262,549,066,506,496/785,230,181.44 - Step 6: Final answer
x = 628,175,738.43
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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.