Finding the Fourth Proportional to 657,625,767.84, 907,523,484.35 and 393,307,718.49
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Solution
The fourth proportional to 657,625,767.84, 907,523,484.35 and 393,307,718.49 is: 542,764,606.50
Step by Step Solution
- Step 1: Write the proportion equation
657,625,767.84 : 907,523,484.35 = 393,307,718.49 : x - Step 2: Convert to fraction form
657,625,767.84/907,523,484.35 = 393,307,718.49/x - Step 3: Cross multiply
657,625,767.84x = 907,523,484.35 × 393,307,718.49 - Step 4: Simplify right side
657,625,767.84x = 356,935,991,103,827,200 - Step 5: Solve for x
x = 356,935,991,103,827,200/657,625,767.84 - Step 6: Final answer
x = 542,764,606.50
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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.