Finding the Fourth Proportional to 2,130,018,653.68, 2,939,369,347.98 and 1,190,229,018.10
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Solution
The fourth proportional to 2,130,018,653.68, 2,939,369,347.98 and 1,190,229,018.10 is: 1,642,484,532.63
Step by Step Solution
- Step 1: Write the proportion equation
2,130,018,653.68 : 2,939,369,347.98 = 1,190,229,018.10 : x - Step 2: Convert to fraction form
2,130,018,653.68/2,939,369,347.98 = 1,190,229,018.10/x - Step 3: Cross multiply
2,130,018,653.68x = 2,939,369,347.98 × 1,190,229,018.10 - Step 4: Simplify right side
2,130,018,653.68x = 3,498,522,692,879,472,128 - Step 5: Solve for x
x = 3,498,522,692,879,472,128/2,130,018,653.68 - Step 6: Final answer
x = 1,642,484,532.63
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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.