Home / 84,075,719.70-126,113,579.55-45,333,670.80

Finding the Fourth Proportional to 84,075,719.70, 126,113,579.55 and 45,333,670.80

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Solution

The fourth proportional to 84,075,719.70, 126,113,579.55 and 45,333,670.80 is: 68,000,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,075,719.70 : 126,113,579.55 = 45,333,670.80 : x
  2. Step 2: Convert to fraction form
    84,075,719.70/126,113,579.55 = 45,333,670.80/x
  3. Step 3: Cross multiply
    84,075,719.70x = 126,113,579.55 × 45,333,670.80
  4. Step 4: Simplify right side
    84,075,719.70x = 5,717,191,498,729,312
  5. Step 5: Solve for x
    x = 5,717,191,498,729,312/84,075,719.70
  6. Step 6: Final answer
    x = 68,000,506.20

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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.