Home / 100,148,276.10-138,135,618.30-70,441,928.28

Finding the Fourth Proportional to 100,148,276.10, 138,135,618.30 and 70,441,928.28

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Solution

The fourth proportional to 100,148,276.10, 138,135,618.30 and 70,441,928.28 is: 97,161,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,148,276.10 : 138,135,618.30 = 70,441,928.28 : x
  2. Step 2: Convert to fraction form
    100,148,276.10/138,135,618.30 = 70,441,928.28/x
  3. Step 3: Cross multiply
    100,148,276.10x = 138,135,618.30 × 70,441,928.28
  4. Step 4: Simplify right side
    100,148,276.10x = 9,730,539,317,202,056
  5. Step 5: Solve for x
    x = 9,730,539,317,202,056/100,148,276.10
  6. Step 6: Final answer
    x = 97,161,326.15

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1.5x scale

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.