Home / 280,484,007.40-420,726,011.10-164,257,860.70

Finding the Fourth Proportional to 280,484,007.40, 420,726,011.10 and 164,257,860.70

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Solution

The fourth proportional to 280,484,007.40, 420,726,011.10 and 164,257,860.70 is: 246,386,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,484,007.40 : 420,726,011.10 = 164,257,860.70 : x
  2. Step 2: Convert to fraction form
    280,484,007.40/420,726,011.10 = 164,257,860.70/x
  3. Step 3: Cross multiply
    280,484,007.40x = 420,726,011.10 × 164,257,860.70
  4. Step 4: Simplify right side
    280,484,007.40x = 69,107,554,524,130,456
  5. Step 5: Solve for x
    x = 69,107,554,524,130,456/280,484,007.40
  6. Step 6: Final answer
    x = 246,386,791.05

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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.