Home / 2,656,985,720.40-3,985,478,580.60-1,276,467,339.60

Finding the Fourth Proportional to 2,656,985,720.40, 3,985,478,580.60 and 1,276,467,339.60

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Solution

The fourth proportional to 2,656,985,720.40, 3,985,478,580.60 and 1,276,467,339.60 is: 1,914,701,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656,985,720.40 : 3,985,478,580.60 = 1,276,467,339.60 : x
  2. Step 2: Convert to fraction form
    2,656,985,720.40/3,985,478,580.60 = 1,276,467,339.60/x
  3. Step 3: Cross multiply
    2,656,985,720.40x = 3,985,478,580.60 × 1,276,467,339.60
  4. Step 4: Simplify right side
    2,656,985,720.40x = 5,087,333,240,811,266,048
  5. Step 5: Solve for x
    x = 5,087,333,240,811,266,048/2,656,985,720.40
  6. Step 6: Final answer
    x = 1,914,701,009.40

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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.