Finding the Fourth Proportional to 992,447,765.80, 1,488,671,648.70 and 992,447,765.80
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Solution
The fourth proportional to 992,447,765.80, 1,488,671,648.70 and 992,447,765.80 is: 1,488,671,648.70
Step by Step Solution
- Step 1: Write the proportion equation
992,447,765.80 : 1,488,671,648.70 = 992,447,765.80 : x - Step 2: Convert to fraction form
992,447,765.80/1,488,671,648.70 = 992,447,765.80/x - Step 3: Cross multiply
992,447,765.80x = 1,488,671,648.70 × 992,447,765.80 - Step 4: Simplify right side
992,447,765.80x = 1,477,428,851,762,117,376 - Step 5: Solve for x
x = 1,477,428,851,762,117,376/992,447,765.80 - Step 6: Final answer
x = 1,488,671,648.70
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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.