Finding the Fourth Proportional to 278,756,455.23, 418,107,437.67 and 84,669,555.87
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Solution
The fourth proportional to 278,756,455.23, 418,107,437.67 and 84,669,555.87 is: 126,996,058.35
Step by Step Solution
- Step 1: Write the proportion equation
278,756,455.23 : 418,107,437.67 = 84,669,555.87 : x - Step 2: Convert to fraction form
278,756,455.23/418,107,437.67 = 84,669,555.87/x - Step 3: Cross multiply
278,756,455.23x = 418,107,437.67 × 84,669,555.87 - Step 4: Simplify right side
278,756,455.23x = 35,400,971,053,462,612 - Step 5: Solve for x
x = 35,400,971,053,462,612/278,756,455.23 - Step 6: Final answer
x = 126,996,058.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.