Finding the Fourth Proportional to 258,756,809.88, 387,908,466.65 and 97,312,119.96
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Solution
The fourth proportional to 258,756,809.88, 387,908,466.65 and 97,312,119.96 is: 145,882,905.49
Step by Step Solution
- Step 1: Write the proportion equation
258,756,809.88 : 387,908,466.65 = 97,312,119.96 : x - Step 2: Convert to fraction form
258,756,809.88/387,908,466.65 = 97,312,119.96/x - Step 3: Cross multiply
258,756,809.88x = 387,908,466.65 × 97,312,119.96 - Step 4: Simplify right side
258,756,809.88x = 37,748,195,240,144,456 - Step 5: Solve for x
x = 37,748,195,240,144,456/258,756,809.88 - Step 6: Final answer
x = 145,882,905.49
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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.