Finding the Fourth Proportional to 875,596,947.70, 1,312,529,117.55 and 414,725,062.90
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Solution
The fourth proportional to 875,596,947.70, 1,312,529,117.55 and 414,725,062.90 is: 621,677,270.88
Step by Step Solution
- Step 1: Write the proportion equation
875,596,947.70 : 1,312,529,117.55 = 414,725,062.90 : x - Step 2: Convert to fraction form
875,596,947.70/1,312,529,117.55 = 414,725,062.90/x - Step 3: Cross multiply
875,596,947.70x = 1,312,529,117.55 × 414,725,062.90 - Step 4: Simplify right side
875,596,947.70x = 544,338,720,834,005,184 - Step 5: Solve for x
x = 544,338,720,834,005,184/875,596,947.70 - Step 6: Final answer
x = 621,677,270.88
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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.