Finding the Fourth Proportional to 124,139,574.34, 171,317,927.61 and 69,135,430.66
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Solution
The fourth proportional to 124,139,574.34, 171,317,927.61 and 69,135,430.66 is: 95,409,854.34
Step by Step Solution
- Step 1: Write the proportion equation
124,139,574.34 : 171,317,927.61 = 69,135,430.66 : x - Step 2: Convert to fraction form
124,139,574.34/171,317,927.61 = 69,135,430.66/x - Step 3: Cross multiply
124,139,574.34x = 171,317,927.61 × 69,135,430.66 - Step 4: Simplify right side
124,139,574.34x = 11,844,138,705,096,054 - Step 5: Solve for x
x = 11,844,138,705,096,054/124,139,574.34 - Step 6: Final answer
x = 95,409,854.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.