Home / 153,232,912.40-211,465,885.14-83,622,777.21

Finding the Fourth Proportional to 153,232,912.40, 211,465,885.14 and 83,622,777.21

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Solution

The fourth proportional to 153,232,912.40, 211,465,885.14 and 83,622,777.21 is: 115,401,869.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,232,912.40 : 211,465,885.14 = 83,622,777.21 : x
  2. Step 2: Convert to fraction form
    153,232,912.40/211,465,885.14 = 83,622,777.21/x
  3. Step 3: Cross multiply
    153,232,912.40x = 211,465,885.14 × 83,622,777.21
  4. Step 4: Simplify right side
    153,232,912.40x = 17,683,364,600,577,668
  5. Step 5: Solve for x
    x = 17,683,364,600,577,668/153,232,912.40
  6. Step 6: Final answer
    x = 115,401,869.77

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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.