Finding the Fourth Proportional to 115,506,721.80, 173,143,427.26 and 72,406,135.80
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Solution
The fourth proportional to 115,506,721.80, 173,143,427.26 and 72,406,135.80 is: 108,536,077.48
Step by Step Solution
- Step 1: Write the proportion equation
115,506,721.80 : 173,143,427.26 = 72,406,135.80 : x - Step 2: Convert to fraction form
115,506,721.80/173,143,427.26 = 72,406,135.80/x - Step 3: Cross multiply
115,506,721.80x = 173,143,427.26 × 72,406,135.80 - Step 4: Simplify right side
115,506,721.80x = 12,536,646,507,064,980 - Step 5: Solve for x
x = 12,536,646,507,064,980/115,506,721.80 - Step 6: Final answer
x = 108,536,077.48
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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.