Home / 113,792,021.20-170,688,031.80-28,691,477.20

Finding the Fourth Proportional to 113,792,021.20, 170,688,031.80 and 28,691,477.20

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Solution

The fourth proportional to 113,792,021.20, 170,688,031.80 and 28,691,477.20 is: 43,037,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,792,021.20 : 170,688,031.80 = 28,691,477.20 : x
  2. Step 2: Convert to fraction form
    113,792,021.20/170,688,031.80 = 28,691,477.20/x
  3. Step 3: Cross multiply
    113,792,021.20x = 170,688,031.80 × 28,691,477.20
  4. Step 4: Simplify right side
    113,792,021.20x = 4,897,291,772,702,575
  5. Step 5: Solve for x
    x = 4,897,291,772,702,575/113,792,021.20
  6. Step 6: Final answer
    x = 43,037,215.80

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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.