Finding the Fourth Proportional to 78,636,408.24, 108,518,746.74 and 43,831,305.20
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Solution
The fourth proportional to 78,636,408.24, 108,518,746.74 and 43,831,305.20 is: 60,487,481.75
Step by Step Solution
- Step 1: Write the proportion equation
78,636,408.24 : 108,518,746.74 = 43,831,305.20 : x - Step 2: Convert to fraction form
78,636,408.24/108,518,746.74 = 43,831,305.20/x - Step 3: Cross multiply
78,636,408.24x = 108,518,746.74 × 43,831,305.20 - Step 4: Simplify right side
78,636,408.24x = 4,756,518,308,282,445 - Step 5: Solve for x
x = 4,756,518,308,282,445/78,636,408.24 - Step 6: Final answer
x = 60,487,481.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.