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Finding the Fourth Proportional to 559,872,077.70, 839,808,116.55 and 387,300,864.90

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Solution

The fourth proportional to 559,872,077.70, 839,808,116.55 and 387,300,864.90 is: 580,951,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,077.70 : 839,808,116.55 = 387,300,864.90 : x
  2. Step 2: Convert to fraction form
    559,872,077.70/839,808,116.55 = 387,300,864.90/x
  3. Step 3: Cross multiply
    559,872,077.70x = 839,808,116.55 × 387,300,864.90
  4. Step 4: Simplify right side
    559,872,077.70x = 325,258,409,889,854,976
  5. Step 5: Solve for x
    x = 325,258,409,889,854,976/559,872,077.70
  6. Step 6: Final answer
    x = 580,951,297.35

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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.