Home / 1,120,365,320.60-1,679,414,240.10-660,066,555.80

Finding the Fourth Proportional to 1,120,365,320.60, 1,679,414,240.10 and 660,066,555.80

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Solution

The fourth proportional to 1,120,365,320.60, 1,679,414,240.10 and 660,066,555.80 is: 989,431,886.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,365,320.60 : 1,679,414,240.10 = 660,066,555.80 : x
  2. Step 2: Convert to fraction form
    1,120,365,320.60/1,679,414,240.10 = 660,066,555.80/x
  3. Step 3: Cross multiply
    1,120,365,320.60x = 1,679,414,240.10 × 660,066,555.80
  4. Step 4: Simplify right side
    1,120,365,320.60x = 1,108,525,173,224,281,088
  5. Step 5: Solve for x
    x = 1,108,525,173,224,281,088/1,120,365,320.60
  6. Step 6: Final answer
    x = 989,431,886.94

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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.