Home / 445,313,558.40-669,314,030.40-386,191,075.20

Finding the Fourth Proportional to 445,313,558.40, 669,314,030.40 and 386,191,075.20

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Solution

The fourth proportional to 445,313,558.40, 669,314,030.40 and 386,191,075.20 is: 580,451,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,313,558.40 : 669,314,030.40 = 386,191,075.20 : x
  2. Step 2: Convert to fraction form
    445,313,558.40/669,314,030.40 = 386,191,075.20/x
  3. Step 3: Cross multiply
    445,313,558.40x = 669,314,030.40 × 386,191,075.20
  4. Step 4: Simplify right side
    445,313,558.40x = 258,483,105,046,621,472
  5. Step 5: Solve for x
    x = 258,483,105,046,621,472/445,313,558.40
  6. Step 6: Final answer
    x = 580,451,908.93

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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.