Home / 947,099,421.25-1,306,348,687.88-617,520,970.69

Finding the Fourth Proportional to 947,099,421.25, 1,306,348,687.88 and 617,520,970.69

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Solution

The fourth proportional to 947,099,421.25, 1,306,348,687.88 and 617,520,970.69 is: 851,756,100.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,099,421.25 : 1,306,348,687.88 = 617,520,970.69 : x
  2. Step 2: Convert to fraction form
    947,099,421.25/1,306,348,687.88 = 617,520,970.69/x
  3. Step 3: Cross multiply
    947,099,421.25x = 1,306,348,687.88 × 617,520,970.69
  4. Step 4: Simplify right side
    947,099,421.25x = 806,697,709,795,258,496
  5. Step 5: Solve for x
    x = 806,697,709,795,258,496/947,099,421.25
  6. Step 6: Final answer
    x = 851,756,100.47

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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.