Home / 280,025,673.40-420,038,510.10-263,005,564.60

Finding the Fourth Proportional to 280,025,673.40, 420,038,510.10 and 263,005,564.60

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Solution

The fourth proportional to 280,025,673.40, 420,038,510.10 and 263,005,564.60 is: 394,508,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,025,673.40 : 420,038,510.10 = 263,005,564.60 : x
  2. Step 2: Convert to fraction form
    280,025,673.40/420,038,510.10 = 263,005,564.60/x
  3. Step 3: Cross multiply
    280,025,673.40x = 420,038,510.10 × 263,005,564.60
  4. Step 4: Simplify right side
    280,025,673.40x = 110,472,465,502,593,312
  5. Step 5: Solve for x
    x = 110,472,465,502,593,312/280,025,673.40
  6. Step 6: Final answer
    x = 394,508,346.90

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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.