Finding the Fourth Proportional to 239,765,157.88, 330,875,914.74 and 129,756,870.88
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Solution
The fourth proportional to 239,765,157.88, 330,875,914.74 and 129,756,870.88 is: 179,064,480.11
Step by Step Solution
- Step 1: Write the proportion equation
239,765,157.88 : 330,875,914.74 = 129,756,870.88 : x - Step 2: Convert to fraction form
239,765,157.88/330,875,914.74 = 129,756,870.88/x - Step 3: Cross multiply
239,765,157.88x = 330,875,914.74 × 129,756,870.88 - Step 4: Simplify right side
239,765,157.88x = 42,933,423,344,905,000 - Step 5: Solve for x
x = 42,933,423,344,905,000/239,765,157.88 - Step 6: Final answer
x = 179,064,480.11
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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.