Home / 720,736,772.40-1,081,105,158.60-260,745,937.20

Finding the Fourth Proportional to 720,736,772.40, 1,081,105,158.60 and 260,745,937.20

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Solution

The fourth proportional to 720,736,772.40, 1,081,105,158.60 and 260,745,937.20 is: 391,118,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,736,772.40 : 1,081,105,158.60 = 260,745,937.20 : x
  2. Step 2: Convert to fraction form
    720,736,772.40/1,081,105,158.60 = 260,745,937.20/x
  3. Step 3: Cross multiply
    720,736,772.40x = 1,081,105,158.60 × 260,745,937.20
  4. Step 4: Simplify right side
    720,736,772.40x = 281,893,777,790,911,616
  5. Step 5: Solve for x
    x = 281,893,777,790,911,616/720,736,772.40
  6. Step 6: Final answer
    x = 391,118,905.80

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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.