Finding the Fourth Proportional to 81,478,395.60, 112,438,626.66 and 44,808,966.60
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Solution
The fourth proportional to 81,478,395.60, 112,438,626.66 and 44,808,966.60 is: 61,835,516.39
Step by Step Solution
- Step 1: Write the proportion equation
81,478,395.60 : 112,438,626.66 = 44,808,966.60 : x - Step 2: Convert to fraction form
81,478,395.60/112,438,626.66 = 44,808,966.60/x - Step 3: Cross multiply
81,478,395.60x = 112,438,626.66 × 44,808,966.60 - Step 4: Simplify right side
81,478,395.60x = 5,038,258,666,557,810 - Step 5: Solve for x
x = 5,038,258,666,557,810/81,478,395.60 - Step 6: Final answer
x = 61,835,516.39
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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.