Home / 2,485,901,021,532.90-3,430,506,900,638.60-1,388,499,646,507.40

Finding the Fourth Proportional to 2,485,901,021,532.90, 3,430,506,900,638.60 and 1,388,499,646,507.40

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Solution

The fourth proportional to 2,485,901,021,532.90, 3,430,506,900,638.60 and 1,388,499,646,507.40 is: 1,916,109,120,040.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485,901,021,532.90 : 3,430,506,900,638.60 = 1,388,499,646,507.40 : x
  2. Step 2: Convert to fraction form
    2,485,901,021,532.90/3,430,506,900,638.60 = 1,388,499,646,507.40/x
  3. Step 3: Cross multiply
    2,485,901,021,532.90x = 3,430,506,900,638.60 × 1,388,499,646,507.40
  4. Step 4: Simplify right side
    2,485,901,021,532.90x = 4,763,257,618,877,892,431,708,160
  5. Step 5: Solve for x
    x = 4,763,257,618,877,892,431,708,160/2,485,901,021,532.90
  6. Step 6: Final answer
    x = 1,916,109,120,040.78

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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.