Finding the Fourth Proportional to 752,779,918.58, 1,128,731,438.99 and 292,180,003.88
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Solution
The fourth proportional to 752,779,918.58, 1,128,731,438.99 and 292,180,003.88 is: 438,099,832.47
Step by Step Solution
- Step 1: Write the proportion equation
752,779,918.58 : 1,128,731,438.99 = 292,180,003.88 : x - Step 2: Convert to fraction form
752,779,918.58/1,128,731,438.99 = 292,180,003.88/x - Step 3: Cross multiply
752,779,918.58x = 1,128,731,438.99 × 292,180,003.88 - Step 4: Simplify right side
752,779,918.58x = 329,792,756,216,471,616 - Step 5: Solve for x
x = 329,792,756,216,471,616/752,779,918.58 - Step 6: Final answer
x = 438,099,832.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.