Home / 979,973,357.36-1,470,175,276.20-289,826,807.60

Finding the Fourth Proportional to 979,973,357.36, 1,470,175,276.20 and 289,826,807.60

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Solution

The fourth proportional to 979,973,357.36, 1,470,175,276.20 and 289,826,807.60 is: 434,803,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,973,357.36 : 1,470,175,276.20 = 289,826,807.60 : x
  2. Step 2: Convert to fraction form
    979,973,357.36/1,470,175,276.20 = 289,826,807.60/x
  3. Step 3: Cross multiply
    979,973,357.36x = 1,470,175,276.20 × 289,826,807.60
  4. Step 4: Simplify right side
    979,973,357.36x = 426,096,206,913,494,336
  5. Step 5: Solve for x
    x = 426,096,206,913,494,336/979,973,357.36
  6. Step 6: Final answer
    x = 434,803,868.61

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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.