Finding the Fourth Proportional to 39,670,948.41, 54,742,904.35 and 22,263,931.77
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Solution
The fourth proportional to 39,670,948.41, 54,742,904.35 and 22,263,931.77 is: 30,722,539.70
Step by Step Solution
- Step 1: Write the proportion equation
39,670,948.41 : 54,742,904.35 = 22,263,931.77 : x - Step 2: Convert to fraction form
39,670,948.41/54,742,904.35 = 22,263,931.77/x - Step 3: Cross multiply
39,670,948.41x = 54,742,904.35 × 22,263,931.77 - Step 4: Simplify right side
39,670,948.41x = 1,218,792,287,340,036.25 - Step 5: Solve for x
x = 1,218,792,287,340,036.25/39,670,948.41 - Step 6: Final answer
x = 30,722,539.70
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1.5x scale
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.