Finding the Fourth Proportional to 3,249,877,671.42, 4,484,767,130.20 and 1,911,912,361.98
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Solution
The fourth proportional to 3,249,877,671.42, 4,484,767,130.20 and 1,911,912,361.98 is: 2,638,401,374.99
Step by Step Solution
- Step 1: Write the proportion equation
3,249,877,671.42 : 4,484,767,130.20 = 1,911,912,361.98 : x - Step 2: Convert to fraction form
3,249,877,671.42/4,484,767,130.20 = 1,911,912,361.98/x - Step 3: Cross multiply
3,249,877,671.42x = 4,484,767,130.20 × 1,911,912,361.98 - Step 4: Simplify right side
3,249,877,671.42x = 8,574,481,716,830,948,352 - Step 5: Solve for x
x = 8,574,481,716,830,948,352/3,249,877,671.42 - Step 6: Final answer
x = 2,638,401,374.99
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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.