Finding the Fourth Proportional to 1,580,357,921.37, 2,180,717,964.61 and 875,333,343.99
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Solution
The fourth proportional to 1,580,357,921.37, 2,180,717,964.61 and 875,333,343.99 is: 1,207,862,549.65
Step by Step Solution
- Step 1: Write the proportion equation
1,580,357,921.37 : 2,180,717,964.61 = 875,333,343.99 : x - Step 2: Convert to fraction form
1,580,357,921.37/2,180,717,964.61 = 875,333,343.99/x - Step 3: Cross multiply
1,580,357,921.37x = 2,180,717,964.61 × 875,333,343.99 - Step 4: Simplify right side
1,580,357,921.37x = 1,908,855,148,267,127,040 - Step 5: Solve for x
x = 1,908,855,148,267,127,040/1,580,357,921.37 - Step 6: Final answer
x = 1,207,862,549.65
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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.