Finding the Fourth Proportional to 798,210,005.70, 1,197,315,008.55 and 471,692,655.30
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Solution
The fourth proportional to 798,210,005.70, 1,197,315,008.55 and 471,692,655.30 is: 707,538,982.95
Step by Step Solution
- Step 1: Write the proportion equation
798,210,005.70 : 1,197,315,008.55 = 471,692,655.30 : x - Step 2: Convert to fraction form
798,210,005.70/1,197,315,008.55 = 471,692,655.30/x - Step 3: Cross multiply
798,210,005.70x = 1,197,315,008.55 × 471,692,655.30 - Step 4: Simplify right side
798,210,005.70x = 564,764,695,613,491,712 - Step 5: Solve for x
x = 564,764,695,613,491,712/798,210,005.70 - Step 6: Final answer
x = 707,538,982.95
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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.