Home / 109,157,031.20-163,735,546.80-100,228,822.40

Finding the Fourth Proportional to 109,157,031.20, 163,735,546.80 and 100,228,822.40

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Solution

The fourth proportional to 109,157,031.20, 163,735,546.80 and 100,228,822.40 is: 150,343,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,157,031.20 : 163,735,546.80 = 100,228,822.40 : x
  2. Step 2: Convert to fraction form
    109,157,031.20/163,735,546.80 = 100,228,822.40/x
  3. Step 3: Cross multiply
    109,157,031.20x = 163,735,546.80 × 100,228,822.40
  4. Step 4: Simplify right side
    109,157,031.20x = 16,411,021,040,784,090
  5. Step 5: Solve for x
    x = 16,411,021,040,784,090/109,157,031.20
  6. Step 6: Final answer
    x = 150,343,233.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.