Finding the Fourth Proportional to 624,637,159.72, 931,371,318.40 and 607,475,643.12
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Solution
The fourth proportional to 624,637,159.72, 931,371,318.40 and 607,475,643.12 is: 905,782,471.99
Step by Step Solution
- Step 1: Write the proportion equation
624,637,159.72 : 931,371,318.40 = 607,475,643.12 : x - Step 2: Convert to fraction form
624,637,159.72/931,371,318.40 = 607,475,643.12/x - Step 3: Cross multiply
624,637,159.72x = 931,371,318.40 × 607,475,643.12 - Step 4: Simplify right side
624,637,159.72x = 565,785,390,628,562,304 - Step 5: Solve for x
x = 565,785,390,628,562,304/624,637,159.72 - Step 6: Final answer
x = 905,782,471.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.