Finding the Fourth Proportional to 11,197,463,645.79, 15,452,969,281.47 and 6,439,743,235.17
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Solution
The fourth proportional to 11,197,463,645.79, 15,452,969,281.47 and 6,439,743,235.17 is: 8,887,115,648.82
Step by Step Solution
- Step 1: Write the proportion equation
11,197,463,645.79 : 15,452,969,281.47 = 6,439,743,235.17 : x - Step 2: Convert to fraction form
11,197,463,645.79/15,452,969,281.47 = 6,439,743,235.17/x - Step 3: Cross multiply
11,197,463,645.79x = 15,452,969,281.47 × 6,439,743,235.17 - Step 4: Simplify right side
11,197,463,645.79x = 99,513,154,393,636,241,408 - Step 5: Solve for x
x = 99,513,154,393,636,241,408/11,197,463,645.79 - Step 6: Final answer
x = 8,887,115,648.82
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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.