Finding the Fourth Proportional to 1,075,664,787.21, 1,484,397,248.53 and 657,946,387.53
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Solution
The fourth proportional to 1,075,664,787.21, 1,484,397,248.53 and 657,946,387.53 is: 907,953,684.96
Step by Step Solution
- Step 1: Write the proportion equation
1,075,664,787.21 : 1,484,397,248.53 = 657,946,387.53 : x - Step 2: Convert to fraction form
1,075,664,787.21/1,484,397,248.53 = 657,946,387.53/x - Step 3: Cross multiply
1,075,664,787.21x = 1,484,397,248.53 × 657,946,387.53 - Step 4: Simplify right side
1,075,664,787.21x = 976,653,807,329,785,088 - Step 5: Solve for x
x = 976,653,807,329,785,088/1,075,664,787.21 - Step 6: Final answer
x = 907,953,684.96
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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.