Finding the Fourth Proportional to 974,915,312.31, 1,462,321,464.62 and 319,780,041.75
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Solution
The fourth proportional to 974,915,312.31, 1,462,321,464.62 and 319,780,041.75 is: 479,653,168.95
Step by Step Solution
- Step 1: Write the proportion equation
974,915,312.31 : 1,462,321,464.62 = 319,780,041.75 : x - Step 2: Convert to fraction form
974,915,312.31/1,462,321,464.62 = 319,780,041.75/x - Step 3: Cross multiply
974,915,312.31x = 1,462,321,464.62 × 319,780,041.75 - Step 4: Simplify right side
974,915,312.31x = 467,621,219,006,505,856 - Step 5: Solve for x
x = 467,621,219,006,505,856/974,915,312.31 - Step 6: Final answer
x = 479,653,168.95
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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.