Home / 946,275,875.92-1,305,860,632.20-528,588,155.92

Finding the Fourth Proportional to 946,275,875.92, 1,305,860,632.20 and 528,588,155.92

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Solution

The fourth proportional to 946,275,875.92, 1,305,860,632.20 and 528,588,155.92 is: 729,451,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,275,875.92 : 1,305,860,632.20 = 528,588,155.92 : x
  2. Step 2: Convert to fraction form
    946,275,875.92/1,305,860,632.20 = 528,588,155.92/x
  3. Step 3: Cross multiply
    946,275,875.92x = 1,305,860,632.20 × 528,588,155.92
  4. Step 4: Simplify right side
    946,275,875.92x = 690,262,463,463,123,456
  5. Step 5: Solve for x
    x = 690,262,463,463,123,456/946,275,875.92
  6. Step 6: Final answer
    x = 729,451,612.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.