Home / 558,626,857.04-770,928,978.12-311,108,210.96

Finding the Fourth Proportional to 558,626,857.04, 770,928,978.12 and 311,108,210.96

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Solution

The fourth proportional to 558,626,857.04, 770,928,978.12 and 311,108,210.96 is: 429,342,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,626,857.04 : 770,928,978.12 = 311,108,210.96 : x
  2. Step 2: Convert to fraction form
    558,626,857.04/770,928,978.12 = 311,108,210.96/x
  3. Step 3: Cross multiply
    558,626,857.04x = 770,928,978.12 × 311,108,210.96
  4. Step 4: Simplify right side
    558,626,857.04x = 239,842,335,160,134,176
  5. Step 5: Solve for x
    x = 239,842,335,160,134,176/558,626,857.04
  6. Step 6: Final answer
    x = 429,342,650.00

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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.