Home / 402,652,357.12-603,787,708.02-140,245,391.72

Finding the Fourth Proportional to 402,652,357.12, 603,787,708.02 and 140,245,391.72

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Solution

The fourth proportional to 402,652,357.12, 603,787,708.02 and 140,245,391.72 is: 210,301,621.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,652,357.12 : 603,787,708.02 = 140,245,391.72 : x
  2. Step 2: Convert to fraction form
    402,652,357.12/603,787,708.02 = 140,245,391.72/x
  3. Step 3: Cross multiply
    402,652,357.12x = 603,787,708.02 × 140,245,391.72
  4. Step 4: Simplify right side
    402,652,357.12x = 84,678,443,626,985,888
  5. Step 5: Solve for x
    x = 84,678,443,626,985,888/402,652,357.12
  6. Step 6: Final answer
    x = 210,301,621.56

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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.