Home / 156,768,323.98-216,354,060.48-86,216,355.10

Finding the Fourth Proportional to 156,768,323.98, 216,354,060.48 and 86,216,355.10

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Solution

The fourth proportional to 156,768,323.98, 216,354,060.48 and 86,216,355.10 is: 118,986,144.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,768,323.98 : 216,354,060.48 = 86,216,355.10 : x
  2. Step 2: Convert to fraction form
    156,768,323.98/216,354,060.48 = 86,216,355.10/x
  3. Step 3: Cross multiply
    156,768,323.98x = 216,354,060.48 × 86,216,355.10
  4. Step 4: Simplify right side
    156,768,323.98x = 18,653,258,505,670,556
  5. Step 5: Solve for x
    x = 18,653,258,505,670,556/156,768,323.98
  6. Step 6: Final answer
    x = 118,986,144.85

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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.