Finding the Fourth Proportional to 486,110,232.84, 670,772,718.90 and 387,242,747.40
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Solution
The fourth proportional to 486,110,232.84, 670,772,718.90 and 387,242,747.40 is: 534,347,670.55
Step by Step Solution
- Step 1: Write the proportion equation
486,110,232.84 : 670,772,718.90 = 387,242,747.40 : x - Step 2: Convert to fraction form
486,110,232.84/670,772,718.90 = 387,242,747.40/x - Step 3: Cross multiply
486,110,232.84x = 670,772,718.90 × 387,242,747.40 - Step 4: Simplify right side
486,110,232.84x = 259,751,870,547,803,872 - Step 5: Solve for x
x = 259,751,870,547,803,872/486,110,232.84 - Step 6: Final answer
x = 534,347,670.55
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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.