Finding the Fourth Proportional to 898,651,567.20, 1,347,977,350.80 and 787,572,962.40
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Solution
The fourth proportional to 898,651,567.20, 1,347,977,350.80 and 787,572,962.40 is: 1,181,359,443.60
Step by Step Solution
- Step 1: Write the proportion equation
898,651,567.20 : 1,347,977,350.80 = 787,572,962.40 : x - Step 2: Convert to fraction form
898,651,567.20/1,347,977,350.80 = 787,572,962.40/x - Step 3: Cross multiply
898,651,567.20x = 1,347,977,350.80 × 787,572,962.40 - Step 4: Simplify right side
898,651,567.20x = 1,061,630,515,417,659,904 - Step 5: Solve for x
x = 1,061,630,515,417,659,904/898,651,567.20 - Step 6: Final answer
x = 1,181,359,443.60
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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.