Finding the Fourth Proportional to 165,176,355.87, 247,225,612.35 and 121,445,519.40
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Solution
The fourth proportional to 165,176,355.87, 247,225,612.35 and 121,445,519.40 is: 181,772,038.40
Step by Step Solution
- Step 1: Write the proportion equation
165,176,355.87 : 247,225,612.35 = 121,445,519.40 : x - Step 2: Convert to fraction form
165,176,355.87/247,225,612.35 = 121,445,519.40/x - Step 3: Cross multiply
165,176,355.87x = 247,225,612.35 × 121,445,519.40 - Step 4: Simplify right side
165,176,355.87x = 30,024,442,901,283,012 - Step 5: Solve for x
x = 30,024,442,901,283,012/165,176,355.87 - Step 6: Final answer
x = 181,772,038.40
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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.