Home / 142,176,021.40-213,264,032.10-117,942,311.80

Finding the Fourth Proportional to 142,176,021.40, 213,264,032.10 and 117,942,311.80

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Solution

The fourth proportional to 142,176,021.40, 213,264,032.10 and 117,942,311.80 is: 176,913,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,176,021.40 : 213,264,032.10 = 117,942,311.80 : x
  2. Step 2: Convert to fraction form
    142,176,021.40/213,264,032.10 = 117,942,311.80/x
  3. Step 3: Cross multiply
    142,176,021.40x = 213,264,032.10 × 117,942,311.80
  4. Step 4: Simplify right side
    142,176,021.40x = 25,152,852,969,663,408
  5. Step 5: Solve for x
    x = 25,152,852,969,663,408/142,176,021.40
  6. Step 6: Final answer
    x = 176,913,467.70

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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.