Home / 1,431,357,875.80-2,146,797,643.30-396,323,384.20

Finding the Fourth Proportional to 1,431,357,875.80, 2,146,797,643.30 and 396,323,384.20

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Solution

The fourth proportional to 1,431,357,875.80, 2,146,797,643.30 and 396,323,384.20 is: 594,418,853.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,357,875.80 : 2,146,797,643.30 = 396,323,384.20 : x
  2. Step 2: Convert to fraction form
    1,431,357,875.80/2,146,797,643.30 = 396,323,384.20/x
  3. Step 3: Cross multiply
    1,431,357,875.80x = 2,146,797,643.30 × 396,323,384.20
  4. Step 4: Simplify right side
    1,431,357,875.80x = 850,826,107,185,240,448
  5. Step 5: Solve for x
    x = 850,826,107,185,240,448/1,431,357,875.80
  6. Step 6: Final answer
    x = 594,418,853.29

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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.