Home / 100,199,536.80-138,193,380.40-70,528,407.36

Finding the Fourth Proportional to 100,199,536.80, 138,193,380.40 and 70,528,407.36

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Solution

The fourth proportional to 100,199,536.80, 138,193,380.40 and 70,528,407.36 is: 97,271,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,199,536.80 : 138,193,380.40 = 70,528,407.36 : x
  2. Step 2: Convert to fraction form
    100,199,536.80/138,193,380.40 = 70,528,407.36/x
  3. Step 3: Cross multiply
    100,199,536.80x = 138,193,380.40 × 70,528,407.36
  4. Step 4: Simplify right side
    100,199,536.80x = 9,746,559,027,306,640
  5. Step 5: Solve for x
    x = 9,746,559,027,306,640/100,199,536.80
  6. Step 6: Final answer
    x = 97,271,497.84

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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.