Finding the Fourth Proportional to 518,444,157.20, 777,667,023.08 and 211,736,270.08
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Solution
The fourth proportional to 518,444,157.20, 777,667,023.08 and 211,736,270.08 is: 317,604,726.65
Step by Step Solution
- Step 1: Write the proportion equation
518,444,157.20 : 777,667,023.08 = 211,736,270.08 : x - Step 2: Convert to fraction form
518,444,157.20/777,667,023.08 = 211,736,270.08/x - Step 3: Cross multiply
518,444,157.20x = 777,667,023.08 × 211,736,270.08 - Step 4: Simplify right side
518,444,157.20x = 164,660,314,831,176,480 - Step 5: Solve for x
x = 164,660,314,831,176,480/518,444,157.20 - Step 6: Final answer
x = 317,604,726.65
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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.