Home / 142,523,251.40-213,784,877.10-70,859,635.40

Finding the Fourth Proportional to 142,523,251.40, 213,784,877.10 and 70,859,635.40

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Solution

The fourth proportional to 142,523,251.40, 213,784,877.10 and 70,859,635.40 is: 106,289,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,523,251.40 : 213,784,877.10 = 70,859,635.40 : x
  2. Step 2: Convert to fraction form
    142,523,251.40/213,784,877.10 = 70,859,635.40/x
  3. Step 3: Cross multiply
    142,523,251.40x = 213,784,877.10 × 70,859,635.40
  4. Step 4: Simplify right side
    142,523,251.40x = 15,148,718,445,339,810
  5. Step 5: Solve for x
    x = 15,148,718,445,339,810/142,523,251.40
  6. Step 6: Final answer
    x = 106,289,453.10

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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.