Finding the Fourth Proportional to 1,698,987,628.74, 2,344,720,765.95 and 1,029,960,873.18
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Solution
The fourth proportional to 1,698,987,628.74, 2,344,720,765.95 and 1,029,960,873.18 is: 1,421,417,440.96
Step by Step Solution
- Step 1: Write the proportion equation
1,698,987,628.74 : 2,344,720,765.95 = 1,029,960,873.18 : x - Step 2: Convert to fraction form
1,698,987,628.74/2,344,720,765.95 = 1,029,960,873.18/x - Step 3: Cross multiply
1,698,987,628.74x = 2,344,720,765.95 × 1,029,960,873.18 - Step 4: Simplify right side
1,698,987,628.74x = 2,414,970,647,461,139,968 - Step 5: Solve for x
x = 2,414,970,647,461,139,968/1,698,987,628.74 - Step 6: Final answer
x = 1,421,417,440.96
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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.