Home / 383,532,909,900.16-575,427,129,828.78-128,587,520,779.61

Finding the Fourth Proportional to 383,532,909,900.16, 575,427,129,828.78 and 128,587,520,779.61

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Solution

The fourth proportional to 383,532,909,900.16, 575,427,129,828.78 and 128,587,520,779.61 is: 192,924,117,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,532,909,900.16 : 575,427,129,828.78 = 128,587,520,779.61 : x
  2. Step 2: Convert to fraction form
    383,532,909,900.16/575,427,129,828.78 = 128,587,520,779.61/x
  3. Step 3: Cross multiply
    383,532,909,900.16x = 575,427,129,828.78 × 128,587,520,779.61
  4. Step 4: Simplify right side
    383,532,909,900.16x = 73,992,748,014,009,594,150,912
  5. Step 5: Solve for x
    x = 73,992,748,014,009,594,150,912/383,532,909,900.16
  6. Step 6: Final answer
    x = 192,924,117,081.04

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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.