Finding the Fourth Proportional to 401,143,984,029.63, 553,583,087,477.70 and 218,242,125,471.81
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Solution
The fourth proportional to 401,143,984,029.63, 553,583,087,477.70 and 218,242,125,471.81 is: 301,176,521,264.88
Step by Step Solution
- Step 1: Write the proportion equation
401,143,984,029.63 : 553,583,087,477.70 = 218,242,125,471.81 : x - Step 2: Convert to fraction form
401,143,984,029.63/553,583,087,477.70 = 218,242,125,471.81/x - Step 3: Cross multiply
401,143,984,029.63x = 553,583,087,477.70 × 218,242,125,471.81 - Step 4: Simplify right side
401,143,984,029.63x = 120,815,149,636,380,155,445,248 - Step 5: Solve for x
x = 120,815,149,636,380,155,445,248/401,143,984,029.63 - Step 6: Final answer
x = 301,176,521,264.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.