Home / 928,810,002.80-1,391,871,311.40-410,816,428.40

Finding the Fourth Proportional to 928,810,002.80, 1,391,871,311.40 and 410,816,428.40

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Solution

The fourth proportional to 928,810,002.80, 1,391,871,311.40 and 410,816,428.40 is: 615,630,321.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,810,002.80 : 1,391,871,311.40 = 410,816,428.40 : x
  2. Step 2: Convert to fraction form
    928,810,002.80/1,391,871,311.40 = 410,816,428.40/x
  3. Step 3: Cross multiply
    928,810,002.80x = 1,391,871,311.40 × 410,816,428.40
  4. Step 4: Simplify right side
    928,810,002.80x = 571,803,600,941,772,224
  5. Step 5: Solve for x
    x = 571,803,600,941,772,224/928,810,002.80
  6. Step 6: Final answer
    x = 615,630,321.83

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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.