Finding the Fourth Proportional to 28,340,565.41, 39,108,722.04 and 15,782,267.76
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Solution
The fourth proportional to 28,340,565.41, 39,108,722.04 and 15,782,267.76 is: 21,778,828.83
Step by Step Solution
- Step 1: Write the proportion equation
28,340,565.41 : 39,108,722.04 = 15,782,267.76 : x - Step 2: Convert to fraction form
28,340,565.41/39,108,722.04 = 15,782,267.76/x - Step 3: Cross multiply
28,340,565.41x = 39,108,722.04 × 15,782,267.76 - Step 4: Simplify right side
28,340,565.41x = 617,224,322,986,693.38 - Step 5: Solve for x
x = 617,224,322,986,693.38/28,340,565.41 - Step 6: Final answer
x = 21,778,828.83
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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.