Finding the Fourth Proportional to 982,235,509.80, 1,473,353,264.70 and 891,837,395.70
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Solution
The fourth proportional to 982,235,509.80, 1,473,353,264.70 and 891,837,395.70 is: 1,337,756,093.55
Step by Step Solution
- Step 1: Write the proportion equation
982,235,509.80 : 1,473,353,264.70 = 891,837,395.70 : x - Step 2: Convert to fraction form
982,235,509.80/1,473,353,264.70 = 891,837,395.70/x - Step 3: Cross multiply
982,235,509.80x = 1,473,353,264.70 × 891,837,395.70 - Step 4: Simplify right side
982,235,509.80x = 1,313,991,538,536,140,800 - Step 5: Solve for x
x = 1,313,991,538,536,140,800/982,235,509.80 - Step 6: Final answer
x = 1,337,756,093.55
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1.5x scale
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.