Home / 153,232,915.90-211,465,889.98-83,622,780.72

Finding the Fourth Proportional to 153,232,915.90, 211,465,889.98 and 83,622,780.72

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Solution

The fourth proportional to 153,232,915.90, 211,465,889.98 and 83,622,780.72 is: 115,401,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,232,915.90 : 211,465,889.98 = 83,622,780.72 : x
  2. Step 2: Convert to fraction form
    153,232,915.90/211,465,889.98 = 83,622,780.72/x
  3. Step 3: Cross multiply
    153,232,915.90x = 211,465,889.98 × 83,622,780.72
  4. Step 4: Simplify right side
    153,232,915.90x = 17,683,365,747,557,184
  5. Step 5: Solve for x
    x = 17,683,365,747,557,184/153,232,915.90
  6. Step 6: Final answer
    x = 115,401,874.61

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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.