Home / 1,413,118,435.40-2,119,993,777.47-430,621,868.91

Finding the Fourth Proportional to 1,413,118,435.40, 2,119,993,777.47 and 430,621,868.91

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Solution

The fourth proportional to 1,413,118,435.40, 2,119,993,777.47 and 430,621,868.91 is: 646,029,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,118,435.40 : 2,119,993,777.47 = 430,621,868.91 : x
  2. Step 2: Convert to fraction form
    1,413,118,435.40/2,119,993,777.47 = 430,621,868.91/x
  3. Step 3: Cross multiply
    1,413,118,435.40x = 2,119,993,777.47 × 430,621,868.91
  4. Step 4: Simplify right side
    1,413,118,435.40x = 912,915,682,529,548,928
  5. Step 5: Solve for x
    x = 912,915,682,529,548,928/1,413,118,435.40
  6. Step 6: Final answer
    x = 646,029,136.45

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1.5x scale

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.