Finding the Fourth Proportional to 291,243,669.12, 401,913,547.12 and 159,084,615.06
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Solution
The fourth proportional to 291,243,669.12, 401,913,547.12 and 159,084,615.06 is: 219,535,285.09
Step by Step Solution
- Step 1: Write the proportion equation
291,243,669.12 : 401,913,547.12 = 159,084,615.06 : x - Step 2: Convert to fraction form
291,243,669.12/401,913,547.12 = 159,084,615.06/x - Step 3: Cross multiply
291,243,669.12x = 401,913,547.12 × 159,084,615.06 - Step 4: Simplify right side
291,243,669.12x = 63,938,261,930,984,376 - Step 5: Solve for x
x = 63,938,261,930,984,376/291,243,669.12 - Step 6: Final answer
x = 219,535,285.09
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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.