Home / 219,975,815.40-329,963,723.10-117,939,143.40

Finding the Fourth Proportional to 219,975,815.40, 329,963,723.10 and 117,939,143.40

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Solution

The fourth proportional to 219,975,815.40, 329,963,723.10 and 117,939,143.40 is: 176,908,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,975,815.40 : 329,963,723.10 = 117,939,143.40 : x
  2. Step 2: Convert to fraction form
    219,975,815.40/329,963,723.10 = 117,939,143.40/x
  3. Step 3: Cross multiply
    219,975,815.40x = 329,963,723.10 × 117,939,143.40
  4. Step 4: Simplify right side
    219,975,815.40x = 38,915,638,855,488,800
  5. Step 5: Solve for x
    x = 38,915,638,855,488,800/219,975,815.40
  6. Step 6: Final answer
    x = 176,908,715.10

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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.