Finding the Fourth Proportional to 165,078,437.80, 247,617,656.70 and 68,001,881.80
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Solution
The fourth proportional to 165,078,437.80, 247,617,656.70 and 68,001,881.80 is: 102,002,822.70
Step by Step Solution
- Step 1: Write the proportion equation
165,078,437.80 : 247,617,656.70 = 68,001,881.80 : x - Step 2: Convert to fraction form
165,078,437.80/247,617,656.70 = 68,001,881.80/x - Step 3: Cross multiply
165,078,437.80x = 247,617,656.70 × 68,001,881.80 - Step 4: Simplify right side
165,078,437.80x = 16,838,466,622,506,376 - Step 5: Solve for x
x = 16,838,466,622,506,376/165,078,437.80 - Step 6: Final answer
x = 102,002,822.70
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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.