Finding the Fourth Proportional to 840,237,562.16, 1,159,629,513.15 and 478,219,543.92
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Solution
The fourth proportional to 840,237,562.16, 1,159,629,513.15 and 478,219,543.92 is: 660,000,840.09
Step by Step Solution
- Step 1: Write the proportion equation
840,237,562.16 : 1,159,629,513.15 = 478,219,543.92 : x - Step 2: Convert to fraction form
840,237,562.16/1,159,629,513.15 = 478,219,543.92/x - Step 3: Cross multiply
840,237,562.16x = 1,159,629,513.15 × 478,219,543.92 - Step 4: Simplify right side
840,237,562.16x = 554,557,496,896,534,144 - Step 5: Solve for x
x = 554,557,496,896,534,144/840,237,562.16 - Step 6: Final answer
x = 660,000,840.09
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1.5x scale
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.