Home / 225,221,210.40-310,808,478.78-129,849,832.34

Finding the Fourth Proportional to 225,221,210.40, 310,808,478.78 and 129,849,832.34

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Solution

The fourth proportional to 225,221,210.40, 310,808,478.78 and 129,849,832.34 is: 179,194,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,221,210.40 : 310,808,478.78 = 129,849,832.34 : x
  2. Step 2: Convert to fraction form
    225,221,210.40/310,808,478.78 = 129,849,832.34/x
  3. Step 3: Cross multiply
    225,221,210.40x = 310,808,478.78 × 129,849,832.34
  4. Step 4: Simplify right side
    225,221,210.40x = 40,358,428,857,879,400
  5. Step 5: Solve for x
    x = 40,358,428,857,879,400/225,221,210.40
  6. Step 6: Final answer
    x = 179,194,618.42

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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.