Home / 524,928,015.20-787,392,022.80-218,817,999.20

Finding the Fourth Proportional to 524,928,015.20, 787,392,022.80 and 218,817,999.20

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Solution

The fourth proportional to 524,928,015.20, 787,392,022.80 and 218,817,999.20 is: 328,226,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,928,015.20 : 787,392,022.80 = 218,817,999.20 : x
  2. Step 2: Convert to fraction form
    524,928,015.20/787,392,022.80 = 218,817,999.20/x
  3. Step 3: Cross multiply
    524,928,015.20x = 787,392,022.80 × 218,817,999.20
  4. Step 4: Simplify right side
    524,928,015.20x = 172,295,547,015,136,768
  5. Step 5: Solve for x
    x = 172,295,547,015,136,768/524,928,015.20
  6. Step 6: Final answer
    x = 328,226,998.80

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1.5x scale

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.