Home / 84,075,719.20-126,113,578.80-45,333,670.30

Finding the Fourth Proportional to 84,075,719.20, 126,113,578.80 and 45,333,670.30

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Solution

The fourth proportional to 84,075,719.20, 126,113,578.80 and 45,333,670.30 is: 68,000,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,075,719.20 : 126,113,578.80 = 45,333,670.30 : x
  2. Step 2: Convert to fraction form
    84,075,719.20/126,113,578.80 = 45,333,670.30/x
  3. Step 3: Cross multiply
    84,075,719.20x = 126,113,578.80 × 45,333,670.30
  4. Step 4: Simplify right side
    84,075,719.20x = 5,717,191,401,672,269
  5. Step 5: Solve for x
    x = 5,717,191,401,672,269/84,075,719.20
  6. Step 6: Final answer
    x = 68,000,505.45

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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.