Finding the Fourth Proportional to 808,534,985.85, 1,115,781,643.42 and 437,257,017.23
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Solution
The fourth proportional to 808,534,985.85, 1,115,781,643.42 and 437,257,017.23 is: 603,416,502.46
Step by Step Solution
- Step 1: Write the proportion equation
808,534,985.85 : 1,115,781,643.42 = 437,257,017.23 : x - Step 2: Convert to fraction form
808,534,985.85/1,115,781,643.42 = 437,257,017.23/x - Step 3: Cross multiply
808,534,985.85x = 1,115,781,643.42 × 437,257,017.23 - Step 4: Simplify right side
808,534,985.85x = 487,883,353,275,144,640 - Step 5: Solve for x
x = 487,883,353,275,144,640/808,534,985.85 - Step 6: Final answer
x = 603,416,502.46
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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.