Home / 109,136,031.60-163,704,047.40-54,557,040.90

Finding the Fourth Proportional to 109,136,031.60, 163,704,047.40 and 54,557,040.90

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Solution

The fourth proportional to 109,136,031.60, 163,704,047.40 and 54,557,040.90 is: 81,835,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,136,031.60 : 163,704,047.40 = 54,557,040.90 : x
  2. Step 2: Convert to fraction form
    109,136,031.60/163,704,047.40 = 54,557,040.90/x
  3. Step 3: Cross multiply
    109,136,031.60x = 163,704,047.40 × 54,557,040.90
  4. Step 4: Simplify right side
    109,136,031.60x = 8,931,208,409,497,339
  5. Step 5: Solve for x
    x = 8,931,208,409,497,339/109,136,031.60
  6. Step 6: Final answer
    x = 81,835,561.35

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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.