Home / 679,885,697.60-1,021,340,200.80-654,187,572.80

Finding the Fourth Proportional to 679,885,697.60, 1,021,340,200.80 and 654,187,572.80

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Solution

The fourth proportional to 679,885,697.60, 1,021,340,200.80 and 654,187,572.80 is: 982,735,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,885,697.60 : 1,021,340,200.80 = 654,187,572.80 : x
  2. Step 2: Convert to fraction form
    679,885,697.60/1,021,340,200.80 = 654,187,572.80/x
  3. Step 3: Cross multiply
    679,885,697.60x = 1,021,340,200.80 × 654,187,572.80
  4. Step 4: Simplify right side
    679,885,697.60x = 668,148,066,964,416,512
  5. Step 5: Solve for x
    x = 668,148,066,964,416,512/679,885,697.60
  6. Step 6: Final answer
    x = 982,735,876.52

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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.