Home / 767,638,437.40-1,151,457,656.10-629,888,930.20

Finding the Fourth Proportional to 767,638,437.40, 1,151,457,656.10 and 629,888,930.20

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Solution

The fourth proportional to 767,638,437.40, 1,151,457,656.10 and 629,888,930.20 is: 944,833,395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,638,437.40 : 1,151,457,656.10 = 629,888,930.20 : x
  2. Step 2: Convert to fraction form
    767,638,437.40/1,151,457,656.10 = 629,888,930.20/x
  3. Step 3: Cross multiply
    767,638,437.40x = 1,151,457,656.10 × 629,888,930.20
  4. Step 4: Simplify right side
    767,638,437.40x = 725,290,431,171,428,480
  5. Step 5: Solve for x
    x = 725,290,431,171,428,480/767,638,437.40
  6. Step 6: Final answer
    x = 944,833,395.30

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Double scale
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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.