Finding the Fourth Proportional to 974,908,298.09, 1,345,373,451.33 and 557,229,551.45
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Solution
The fourth proportional to 974,908,298.09, 1,345,373,451.33 and 557,229,551.45 is: 768,976,780.99
Step by Step Solution
- Step 1: Write the proportion equation
974,908,298.09 : 1,345,373,451.33 = 557,229,551.45 : x - Step 2: Convert to fraction form
974,908,298.09/1,345,373,451.33 = 557,229,551.45/x - Step 3: Cross multiply
974,908,298.09x = 1,345,373,451.33 × 557,229,551.45 - Step 4: Simplify right side
974,908,298.09x = 749,681,844,823,041,024 - Step 5: Solve for x
x = 749,681,844,823,041,024/974,908,298.09 - Step 6: Final answer
x = 768,976,780.99
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Double scale
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1.5x scale
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.