Home / 288,683,999.40-433,025,999.10-280,180,943.40

Finding the Fourth Proportional to 288,683,999.40, 433,025,999.10 and 280,180,943.40

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Solution

The fourth proportional to 288,683,999.40, 433,025,999.10 and 280,180,943.40 is: 420,271,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,683,999.40 : 433,025,999.10 = 280,180,943.40 : x
  2. Step 2: Convert to fraction form
    288,683,999.40/433,025,999.10 = 280,180,943.40/x
  3. Step 3: Cross multiply
    288,683,999.40x = 433,025,999.10 × 280,180,943.40
  4. Step 4: Simplify right side
    288,683,999.40x = 121,325,632,944,565,552
  5. Step 5: Solve for x
    x = 121,325,632,944,565,552/288,683,999.40
  6. Step 6: Final answer
    x = 420,271,415.10

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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.