Home / 216,843,870.78-325,143,574.68-71,238,337.02

Finding the Fourth Proportional to 216,843,870.78, 325,143,574.68 and 71,238,337.02

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Solution

The fourth proportional to 216,843,870.78, 325,143,574.68 and 71,238,337.02 is: 106,817,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,843,870.78 : 325,143,574.68 = 71,238,337.02 : x
  2. Step 2: Convert to fraction form
    216,843,870.78/325,143,574.68 = 71,238,337.02/x
  3. Step 3: Cross multiply
    216,843,870.78x = 325,143,574.68 × 71,238,337.02
  4. Step 4: Simplify right side
    216,843,870.78x = 23,162,687,552,941,376
  5. Step 5: Solve for x
    x = 23,162,687,552,941,376/216,843,870.78
  6. Step 6: Final answer
    x = 106,817,349.60

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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.