Home / 255,432,021.60-383,148,032.40-73,685,128.80

Finding the Fourth Proportional to 255,432,021.60, 383,148,032.40 and 73,685,128.80

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Solution

The fourth proportional to 255,432,021.60, 383,148,032.40 and 73,685,128.80 is: 110,527,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,432,021.60 : 383,148,032.40 = 73,685,128.80 : x
  2. Step 2: Convert to fraction form
    255,432,021.60/383,148,032.40 = 73,685,128.80/x
  3. Step 3: Cross multiply
    255,432,021.60x = 383,148,032.40 × 73,685,128.80
  4. Step 4: Simplify right side
    255,432,021.60x = 28,232,312,116,860,572
  5. Step 5: Solve for x
    x = 28,232,312,116,860,572/255,432,021.60
  6. Step 6: Final answer
    x = 110,527,693.20

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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.