Finding the Fourth Proportional to 420,663,153.30, 630,993,881.85 and 395,064,529.68
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Solution
The fourth proportional to 420,663,153.30, 630,993,881.85 and 395,064,529.68 is: 592,595,998.03
Step by Step Solution
- Step 1: Write the proportion equation
420,663,153.30 : 630,993,881.85 = 395,064,529.68 : x - Step 2: Convert to fraction form
420,663,153.30/630,993,881.85 = 395,064,529.68/x - Step 3: Cross multiply
420,663,153.30x = 630,993,881.85 × 395,064,529.68 - Step 4: Simplify right side
420,663,153.30x = 249,283,301,164,027,744 - Step 5: Solve for x
x = 249,283,301,164,027,744/420,663,153.30 - Step 6: Final answer
x = 592,595,998.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.