Finding the Fourth Proportional to 257,809,607.36, 355,781,793.12 and 140,338,314.08
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Solution
The fourth proportional to 257,809,607.36, 355,781,793.12 and 140,338,314.08 is: 193,669,342.03
Step by Step Solution
- Step 1: Write the proportion equation
257,809,607.36 : 355,781,793.12 = 140,338,314.08 : x - Step 2: Convert to fraction form
257,809,607.36/355,781,793.12 = 140,338,314.08/x - Step 3: Cross multiply
257,809,607.36x = 355,781,793.12 × 140,338,314.08 - Step 4: Simplify right side
257,809,607.36x = 49,929,817,026,820,152 - Step 5: Solve for x
x = 49,929,817,026,820,152/257,809,607.36 - Step 6: Final answer
x = 193,669,342.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.