Home / 115,918,799.40-173,878,199.10-81,906,575.40

Finding the Fourth Proportional to 115,918,799.40, 173,878,199.10 and 81,906,575.40

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Solution

The fourth proportional to 115,918,799.40, 173,878,199.10 and 81,906,575.40 is: 122,859,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,918,799.40 : 173,878,199.10 = 81,906,575.40 : x
  2. Step 2: Convert to fraction form
    115,918,799.40/173,878,199.10 = 81,906,575.40/x
  3. Step 3: Cross multiply
    115,918,799.40x = 173,878,199.10 × 81,906,575.40
  4. Step 4: Simplify right side
    115,918,799.40x = 14,241,767,825,000,362
  5. Step 5: Solve for x
    x = 14,241,767,825,000,362/115,918,799.40
  6. Step 6: Final answer
    x = 122,859,863.10

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1.5x scale

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.