Home / 815,967,719.55-1,126,075,376.75-458,847,890.37

Finding the Fourth Proportional to 815,967,719.55, 1,126,075,376.75 and 458,847,890.37

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Solution

The fourth proportional to 815,967,719.55, 1,126,075,376.75 and 458,847,890.37 is: 633,232,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,967,719.55 : 1,126,075,376.75 = 458,847,890.37 : x
  2. Step 2: Convert to fraction form
    815,967,719.55/1,126,075,376.75 = 458,847,890.37/x
  3. Step 3: Cross multiply
    815,967,719.55x = 1,126,075,376.75 × 458,847,890.37
  4. Step 4: Simplify right side
    815,967,719.55x = 516,697,311,017,046,144
  5. Step 5: Solve for x
    x = 516,697,311,017,046,144/815,967,719.55
  6. Step 6: Final answer
    x = 633,232,539.27

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1.5x scale

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.