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Finding the Fourth Proportional to 559,872,079.70, 839,808,119.55 and 387,300,866.90

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Solution

The fourth proportional to 559,872,079.70, 839,808,119.55 and 387,300,866.90 is: 580,951,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,079.70 : 839,808,119.55 = 387,300,866.90 : x
  2. Step 2: Convert to fraction form
    559,872,079.70/839,808,119.55 = 387,300,866.90/x
  3. Step 3: Cross multiply
    559,872,079.70x = 839,808,119.55 × 387,300,866.90
  4. Step 4: Simplify right side
    559,872,079.70x = 325,258,412,731,373,824
  5. Step 5: Solve for x
    x = 325,258,412,731,373,824/559,872,079.70
  6. Step 6: Final answer
    x = 580,951,300.35

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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.