Finding the Fourth Proportional to 749,827,380.96, 1,124,814,992.04 and 258,475,963.68
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Solution
The fourth proportional to 749,827,380.96, 1,124,814,992.04 and 258,475,963.68 is: 387,739,426.98
Step by Step Solution
- Step 1: Write the proportion equation
749,827,380.96 : 1,124,814,992.04 = 258,475,963.68 : x - Step 2: Convert to fraction form
749,827,380.96/1,124,814,992.04 = 258,475,963.68/x - Step 3: Cross multiply
749,827,380.96x = 1,124,814,992.04 × 258,475,963.68 - Step 4: Simplify right side
749,827,380.96x = 290,737,639,029,250,496 - Step 5: Solve for x
x = 290,737,639,029,250,496/749,827,380.96 - Step 6: Final answer
x = 387,739,426.98
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Double scale
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1.5x scale
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.