Home / 229,139,833.84-316,239,896.76-128,684,780.16

Finding the Fourth Proportional to 229,139,833.84, 316,239,896.76 and 128,684,780.16

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Solution

The fourth proportional to 229,139,833.84, 316,239,896.76 and 128,684,780.16 is: 177,600,118.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,139,833.84 : 316,239,896.76 = 128,684,780.16 : x
  2. Step 2: Convert to fraction form
    229,139,833.84/316,239,896.76 = 128,684,780.16/x
  3. Step 3: Cross multiply
    229,139,833.84x = 316,239,896.76 × 128,684,780.16
  4. Step 4: Simplify right side
    229,139,833.84x = 40,695,261,592,381,696
  5. Step 5: Solve for x
    x = 40,695,261,592,381,696/229,139,833.84
  6. Step 6: Final answer
    x = 177,600,118.28

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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.