Finding the Fourth Proportional to 931,211,531.88, 1,395,667,101.55 and 799,125,358.91
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Solution
The fourth proportional to 931,211,531.88, 1,395,667,101.55 and 799,125,358.91 is: 1,197,700,989.80
Step by Step Solution
- Step 1: Write the proportion equation
931,211,531.88 : 1,395,667,101.55 = 799,125,358.91 : x - Step 2: Convert to fraction form
931,211,531.88/1,395,667,101.55 = 799,125,358.91/x - Step 3: Cross multiply
931,211,531.88x = 1,395,667,101.55 × 799,125,358.91 - Step 4: Simplify right side
931,211,531.88x = 1,115,312,973,445,023,104 - Step 5: Solve for x
x = 1,115,312,973,445,023,104/931,211,531.88 - Step 6: Final answer
x = 1,197,700,989.80
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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.