Finding the Fourth Proportional to 1,571,615,818.90, 2,357,021,626.53 and 465,962,135.02
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Solution
The fourth proportional to 1,571,615,818.90, 2,357,021,626.53 and 465,962,135.02 is: 698,823,984.96
Step by Step Solution
- Step 1: Write the proportion equation
1,571,615,818.90 : 2,357,021,626.53 = 465,962,135.02 : x - Step 2: Convert to fraction form
1,571,615,818.90/2,357,021,626.53 = 465,962,135.02/x - Step 3: Cross multiply
1,571,615,818.90x = 2,357,021,626.53 × 465,962,135.02 - Step 4: Simplify right side
1,571,615,818.90x = 1,098,282,829,386,231,936 - Step 5: Solve for x
x = 1,098,282,829,386,231,936/1,571,615,818.90 - Step 6: Final answer
x = 698,823,984.96
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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.