Finding the Fourth Proportional to 1,248,700,361.47, 1,872,437,630.13 and 617,703,368.71
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Solution
The fourth proportional to 1,248,700,361.47, 1,872,437,630.13 and 617,703,368.71 is: 926,251,859.55
Step by Step Solution
- Step 1: Write the proportion equation
1,248,700,361.47 : 1,872,437,630.13 = 617,703,368.71 : x - Step 2: Convert to fraction form
1,248,700,361.47/1,872,437,630.13 = 617,703,368.71/x - Step 3: Cross multiply
1,248,700,361.47x = 1,872,437,630.13 × 617,703,368.71 - Step 4: Simplify right side
1,248,700,361.47x = 1,156,611,031,830,670,080 - Step 5: Solve for x
x = 1,156,611,031,830,670,080/1,248,700,361.47 - Step 6: Final answer
x = 926,251,859.55
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1.5x scale
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.