Home / 228,107,806.81-314,794,963.10-129,003,374.19

Finding the Fourth Proportional to 228,107,806.81, 314,794,963.10 and 129,003,374.19

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Solution

The fourth proportional to 228,107,806.81, 314,794,963.10 and 129,003,374.19 is: 178,028,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,107,806.81 : 314,794,963.10 = 129,003,374.19 : x
  2. Step 2: Convert to fraction form
    228,107,806.81/314,794,963.10 = 129,003,374.19/x
  3. Step 3: Cross multiply
    228,107,806.81x = 314,794,963.10 × 129,003,374.19
  4. Step 4: Simplify right side
    228,107,806.81x = 40,609,612,417,271,528
  5. Step 5: Solve for x
    x = 40,609,612,417,271,528/228,107,806.81
  6. Step 6: Final answer
    x = 178,028,156.89

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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.