Finding the Fourth Proportional to 497,759,005.68, 686,804,880.51 and 286,024,924.68
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Solution
The fourth proportional to 497,759,005.68, 686,804,880.51 and 286,024,924.68 is: 394,655,469.77
Step by Step Solution
- Step 1: Write the proportion equation
497,759,005.68 : 686,804,880.51 = 286,024,924.68 : x - Step 2: Convert to fraction form
497,759,005.68/686,804,880.51 = 286,024,924.68/x - Step 3: Cross multiply
497,759,005.68x = 686,804,880.51 × 286,024,924.68 - Step 4: Simplify right side
497,759,005.68x = 196,443,314,217,729,152 - Step 5: Solve for x
x = 196,443,314,217,729,152/497,759,005.68 - Step 6: Final answer
x = 394,655,469.77
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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.