Finding the Fourth Proportional to 627,823,250.08, 866,549,853.12 and 486,414,771.59
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Solution
The fourth proportional to 627,823,250.08, 866,549,853.12 and 486,414,771.59 is: 671,371,518.69
Step by Step Solution
- Step 1: Write the proportion equation
627,823,250.08 : 866,549,853.12 = 486,414,771.59 : x - Step 2: Convert to fraction form
627,823,250.08/866,549,853.12 = 486,414,771.59/x - Step 3: Cross multiply
627,823,250.08x = 866,549,853.12 × 486,414,771.59 - Step 4: Simplify right side
627,823,250.08x = 421,502,648,874,280,768 - Step 5: Solve for x
x = 421,502,648,874,280,768/627,823,250.08 - Step 6: Final answer
x = 671,371,518.69
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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.