Home / 70,829,112.80-106,243,669.20-64,782,495.20

Finding the Fourth Proportional to 70,829,112.80, 106,243,669.20 and 64,782,495.20

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Solution

The fourth proportional to 70,829,112.80, 106,243,669.20 and 64,782,495.20 is: 97,173,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,829,112.80 : 106,243,669.20 = 64,782,495.20 : x
  2. Step 2: Convert to fraction form
    70,829,112.80/106,243,669.20 = 64,782,495.20/x
  3. Step 3: Cross multiply
    70,829,112.80x = 106,243,669.20 × 64,782,495.20
  4. Step 4: Simplify right side
    70,829,112.80x = 6,882,729,989,979,388
  5. Step 5: Solve for x
    x = 6,882,729,989,979,388/70,829,112.80
  6. Step 6: Final answer
    x = 97,173,742.80

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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.