Home / 225,221,209.65-310,808,477.75-129,849,831.59

Finding the Fourth Proportional to 225,221,209.65, 310,808,477.75 and 129,849,831.59

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Solution

The fourth proportional to 225,221,209.65, 310,808,477.75 and 129,849,831.59 is: 179,194,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,221,209.65 : 310,808,477.75 = 129,849,831.59 : x
  2. Step 2: Convert to fraction form
    225,221,209.65/310,808,477.75 = 129,849,831.59/x
  3. Step 3: Cross multiply
    225,221,209.65x = 310,808,477.75 × 129,849,831.59
  4. Step 4: Simplify right side
    225,221,209.65x = 40,358,428,490,378,472
  5. Step 5: Solve for x
    x = 40,358,428,490,378,472/225,221,209.65
  6. Step 6: Final answer
    x = 179,194,617.39

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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.