Home / 524,928,015.70-787,392,023.55-218,817,999.70

Finding the Fourth Proportional to 524,928,015.70, 787,392,023.55 and 218,817,999.70

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Solution

The fourth proportional to 524,928,015.70, 787,392,023.55 and 218,817,999.70 is: 328,226,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,928,015.70 : 787,392,023.55 = 218,817,999.70 : x
  2. Step 2: Convert to fraction form
    524,928,015.70/787,392,023.55 = 218,817,999.70/x
  3. Step 3: Cross multiply
    524,928,015.70x = 787,392,023.55 × 218,817,999.70
  4. Step 4: Simplify right side
    524,928,015.70x = 172,295,547,572,946,272
  5. Step 5: Solve for x
    x = 172,295,547,572,946,272/524,928,015.70
  6. Step 6: Final answer
    x = 328,226,999.55

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Similar ratio
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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.