Finding the Fourth Proportional to 1,191,577,394.97, 1,787,768,331.47 and 527,499,811.49
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Solution
The fourth proportional to 1,191,577,394.97, 1,787,768,331.47 and 527,499,811.49 is: 791,427,784.56
Step by Step Solution
- Step 1: Write the proportion equation
1,191,577,394.97 : 1,787,768,331.47 = 527,499,811.49 : x - Step 2: Convert to fraction form
1,191,577,394.97/1,787,768,331.47 = 527,499,811.49/x - Step 3: Cross multiply
1,191,577,394.97x = 1,787,768,331.47 × 527,499,811.49 - Step 4: Simplify right side
1,191,577,394.97x = 943,047,457,828,644,992 - Step 5: Solve for x
x = 943,047,457,828,644,992/1,191,577,394.97 - Step 6: Final answer
x = 791,427,784.56
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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.