Finding the Fourth Proportional to 489,646,506.87, 675,660,809.48 and 277,885,902.15
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Solution
The fourth proportional to 489,646,506.87, 675,660,809.48 and 277,885,902.15 is: 383,453,391.28
Step by Step Solution
- Step 1: Write the proportion equation
489,646,506.87 : 675,660,809.48 = 277,885,902.15 : x - Step 2: Convert to fraction form
489,646,506.87/675,660,809.48 = 277,885,902.15/x - Step 3: Cross multiply
489,646,506.87x = 675,660,809.48 × 277,885,902.15 - Step 4: Simplify right side
489,646,506.87x = 187,756,613,588,359,648 - Step 5: Solve for x
x = 187,756,613,588,359,648/489,646,506.87 - Step 6: Final answer
x = 383,453,391.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.