Home / 839,810,112.90-1,260,345,025.35-430,655,655.30

Finding the Fourth Proportional to 839,810,112.90, 1,260,345,025.35 and 430,655,655.30

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Solution

The fourth proportional to 839,810,112.90, 1,260,345,025.35 and 430,655,655.30 is: 646,306,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,112.90 : 1,260,345,025.35 = 430,655,655.30 : x
  2. Step 2: Convert to fraction form
    839,810,112.90/1,260,345,025.35 = 430,655,655.30/x
  3. Step 3: Cross multiply
    839,810,112.90x = 1,260,345,025.35 × 430,655,655.30
  4. Step 4: Simplify right side
    839,810,112.90x = 542,774,712,796,199,360
  5. Step 5: Solve for x
    x = 542,774,712,796,199,360/839,810,112.90
  6. Step 6: Final answer
    x = 646,306,473.88

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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.