Finding the Fourth Proportional to 486,328,395,866.58, 728,466,340,041.99 and 390,193,935,956.10
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Solution
The fourth proportional to 486,328,395,866.58, 728,466,340,041.99 and 390,193,935,956.10 is: 584,467,513,820.64
Step by Step Solution
- Step 1: Write the proportion equation
486,328,395,866.58 : 728,466,340,041.99 = 390,193,935,956.10 : x - Step 2: Convert to fraction form
486,328,395,866.58/728,466,340,041.99 = 390,193,935,956.10/x - Step 3: Cross multiply
486,328,395,866.58x = 728,466,340,041.99 × 390,193,935,956.10 - Step 4: Simplify right side
486,328,395,866.58x = 284,243,148,432,518,772,948,992 - Step 5: Solve for x
x = 284,243,148,432,518,772,948,992/486,328,395,866.58 - Step 6: Final answer
x = 584,467,513,820.64
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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.