Finding the Fourth Proportional to 832,578,929.20, 1,248,865,071.99 and 372,194,246.98
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Solution
The fourth proportional to 832,578,929.20, 1,248,865,071.99 and 372,194,246.98 is: 558,289,885.50
Step by Step Solution
- Step 1: Write the proportion equation
832,578,929.20 : 1,248,865,071.99 = 372,194,246.98 : x - Step 2: Convert to fraction form
832,578,929.20/1,248,865,071.99 = 372,194,246.98/x - Step 3: Cross multiply
832,578,929.20x = 1,248,865,071.99 × 372,194,246.98 - Step 4: Simplify right side
832,578,929.20x = 464,820,395,048,941,568 - Step 5: Solve for x
x = 464,820,395,048,941,568/832,578,929.20 - Step 6: Final answer
x = 558,289,885.50
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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.