Home / 109,963,205.40-164,944,808.10-87,120,427.80

Finding the Fourth Proportional to 109,963,205.40, 164,944,808.10 and 87,120,427.80

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Solution

The fourth proportional to 109,963,205.40, 164,944,808.10 and 87,120,427.80 is: 130,680,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,963,205.40 : 164,944,808.10 = 87,120,427.80 : x
  2. Step 2: Convert to fraction form
    109,963,205.40/164,944,808.10 = 87,120,427.80/x
  3. Step 3: Cross multiply
    109,963,205.40x = 164,944,808.10 × 87,120,427.80
  4. Step 4: Simplify right side
    109,963,205.40x = 14,370,062,245,060,904
  5. Step 5: Solve for x
    x = 14,370,062,245,060,904/109,963,205.40
  6. Step 6: Final answer
    x = 130,680,641.70

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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.