Finding the Fourth Proportional to 87,827,763.35, 121,162,569.50 and 53,009,323.67
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Solution
The fourth proportional to 87,827,763.35, 121,162,569.50 and 53,009,323.67 is: 73,128,878.82
Step by Step Solution
- Step 1: Write the proportion equation
87,827,763.35 : 121,162,569.50 = 53,009,323.67 : x - Step 2: Convert to fraction form
87,827,763.35/121,162,569.50 = 53,009,323.67/x - Step 3: Cross multiply
87,827,763.35x = 121,162,569.50 × 53,009,323.67 - Step 4: Simplify right side
87,827,763.35x = 6,422,745,863,314,370 - Step 5: Solve for x
x = 6,422,745,863,314,370/87,827,763.35 - Step 6: Final answer
x = 73,128,878.82
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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.