Home / 255,395,484.52-352,445,762.40-137,920,805.20

Finding the Fourth Proportional to 255,395,484.52, 352,445,762.40 and 137,920,805.20

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Solution

The fourth proportional to 255,395,484.52, 352,445,762.40 and 137,920,805.20 is: 190,330,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,395,484.52 : 352,445,762.40 = 137,920,805.20 : x
  2. Step 2: Convert to fraction form
    255,395,484.52/352,445,762.40 = 137,920,805.20/x
  3. Step 3: Cross multiply
    255,395,484.52x = 352,445,762.40 × 137,920,805.20
  4. Step 4: Simplify right side
    255,395,484.52x = 48,609,603,339,535,880
  5. Step 5: Solve for x
    x = 48,609,603,339,535,880/255,395,484.52
  6. Step 6: Final answer
    x = 190,330,707.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.