Home / 154,669,328.15-213,447,718.14-84,109,065.15

Finding the Fourth Proportional to 154,669,328.15, 213,447,718.14 and 84,109,065.15

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Solution

The fourth proportional to 154,669,328.15, 213,447,718.14 and 84,109,065.15 is: 116,072,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,669,328.15 : 213,447,718.14 = 84,109,065.15 : x
  2. Step 2: Convert to fraction form
    154,669,328.15/213,447,718.14 = 84,109,065.15/x
  3. Step 3: Cross multiply
    154,669,328.15x = 213,447,718.14 × 84,109,065.15
  4. Step 4: Simplify right side
    154,669,328.15x = 17,952,888,030,281,388
  5. Step 5: Solve for x
    x = 17,952,888,030,281,388/154,669,328.15
  6. Step 6: Final answer
    x = 116,072,709.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.