Home / 979,018,216.40-1,465,126,102.20-897,388,878.80

Finding the Fourth Proportional to 979,018,216.40, 1,465,126,102.20 and 897,388,878.80

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Solution

The fourth proportional to 979,018,216.40, 1,465,126,102.20 and 897,388,878.80 is: 1,342,965,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,018,216.40 : 1,465,126,102.20 = 897,388,878.80 : x
  2. Step 2: Convert to fraction form
    979,018,216.40/1,465,126,102.20 = 897,388,878.80/x
  3. Step 3: Cross multiply
    979,018,216.40x = 1,465,126,102.20 × 897,388,878.80
  4. Step 4: Simplify right side
    979,018,216.40x = 1,314,787,870,153,872,128
  5. Step 5: Solve for x
    x = 1,314,787,870,153,872,128/979,018,216.40
  6. Step 6: Final answer
    x = 1,342,965,685.55

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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.