Home / 129,028,036.20-193,537,907.10-42,770,423.40

Finding the Fourth Proportional to 129,028,036.20, 193,537,907.10 and 42,770,423.40

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Solution

The fourth proportional to 129,028,036.20, 193,537,907.10 and 42,770,423.40 is: 64,154,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,028,036.20 : 193,537,907.10 = 42,770,423.40 : x
  2. Step 2: Convert to fraction form
    129,028,036.20/193,537,907.10 = 42,770,423.40/x
  3. Step 3: Cross multiply
    129,028,036.20x = 193,537,907.10 × 42,770,423.40
  4. Step 4: Simplify right side
    129,028,036.20x = 8,277,698,230,616,866
  5. Step 5: Solve for x
    x = 8,277,698,230,616,866/129,028,036.20
  6. Step 6: Final answer
    x = 64,154,260.38

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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.