Finding the Fourth Proportional to 974,912,689.98, 1,345,026,441.24 and 640,565,289.09
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Solution
The fourth proportional to 974,912,689.98, 1,345,026,441.24 and 640,565,289.09 is: 883,748,114.08
Step by Step Solution
- Step 1: Write the proportion equation
974,912,689.98 : 1,345,026,441.24 = 640,565,289.09 : x - Step 2: Convert to fraction form
974,912,689.98/1,345,026,441.24 = 640,565,289.09/x - Step 3: Cross multiply
974,912,689.98x = 1,345,026,441.24 × 640,565,289.09 - Step 4: Simplify right side
974,912,689.98x = 861,577,251,166,594,560 - Step 5: Solve for x
x = 861,577,251,166,594,560/974,912,689.98 - Step 6: Final answer
x = 883,748,114.08
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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.