Finding the Fourth Proportional to 115,698,618.64, 159,663,655.74 and 63,488,528.02
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Solution
The fourth proportional to 115,698,618.64, 159,663,655.74 and 63,488,528.02 is: 87,613,928.33
Step by Step Solution
- Step 1: Write the proportion equation
115,698,618.64 : 159,663,655.74 = 63,488,528.02 : x - Step 2: Convert to fraction form
115,698,618.64/159,663,655.74 = 63,488,528.02/x - Step 3: Cross multiply
115,698,618.64x = 159,663,655.74 × 63,488,528.02 - Step 4: Simplify right side
115,698,618.64x = 10,136,810,481,224,624 - Step 5: Solve for x
x = 10,136,810,481,224,624/115,698,618.64 - Step 6: Final answer
x = 87,613,928.33
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.