Finding the Fourth Proportional to 76,688,552.90, 115,032,829.35 and 36,377,768.90
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Solution
The fourth proportional to 76,688,552.90, 115,032,829.35 and 36,377,768.90 is: 54,566,653.35
Step by Step Solution
- Step 1: Write the proportion equation
76,688,552.90 : 115,032,829.35 = 36,377,768.90 : x - Step 2: Convert to fraction form
76,688,552.90/115,032,829.35 = 36,377,768.90/x - Step 3: Cross multiply
76,688,552.90x = 115,032,829.35 × 36,377,768.90 - Step 4: Simplify right side
76,688,552.90x = 4,184,637,682,007,437 - Step 5: Solve for x
x = 4,184,637,682,007,437/76,688,552.90 - Step 6: Final answer
x = 54,566,653.35
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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.