Home / 1,206,804,510.60-1,810,206,765.90-431,325,803.40

Finding the Fourth Proportional to 1,206,804,510.60, 1,810,206,765.90 and 431,325,803.40

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Solution

The fourth proportional to 1,206,804,510.60, 1,810,206,765.90 and 431,325,803.40 is: 646,988,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,804,510.60 : 1,810,206,765.90 = 431,325,803.40 : x
  2. Step 2: Convert to fraction form
    1,206,804,510.60/1,810,206,765.90 = 431,325,803.40/x
  3. Step 3: Cross multiply
    1,206,804,510.60x = 1,810,206,765.90 × 431,325,803.40
  4. Step 4: Simplify right side
    1,206,804,510.60x = 780,788,887,621,933,184
  5. Step 5: Solve for x
    x = 780,788,887,621,933,184/1,206,804,510.60
  6. Step 6: Final answer
    x = 646,988,705.10

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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.