Home / 258,659,819.60-388,139,028.60-97,118,085.20

Finding the Fourth Proportional to 258,659,819.60, 388,139,028.60 and 97,118,085.20

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Solution

The fourth proportional to 258,659,819.60, 388,139,028.60 and 97,118,085.20 is: 145,733,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,659,819.60 : 388,139,028.60 = 97,118,085.20 : x
  2. Step 2: Convert to fraction form
    258,659,819.60/388,139,028.60 = 97,118,085.20/x
  3. Step 3: Cross multiply
    258,659,819.60x = 388,139,028.60 × 97,118,085.20
  4. Step 4: Simplify right side
    258,659,819.60x = 37,695,319,249,020,040
  5. Step 5: Solve for x
    x = 37,695,319,249,020,040/258,659,819.60
  6. Step 6: Final answer
    x = 145,733,184.64

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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.